Search  for anything...

Terviiix Flat Iron Hair Straightener, Cover More Hair in One Pass, 1.75 in | 2x Faster Styling for Thick Coarse Curly Hair, 4.7 inch Long 3D Floating Plates, Salon 450°F, Ionic & Ceramic, Less Damage

  • Based on 43 reviews
Condition: New
Checking for the best price...
$24.99 Why this price?
Save $25.00 was $49.99

Buy Now, Pay Later


As low as $6 / mo
  • – 4-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: Only 5 left in stock, order soon!
Fulfilled by Amazon

Arrives Saturday, Aug 22
Order within 21 hours and 26 minutes
Available payment plans shown during checkout

Protection Plan Protect Your Purchase
Checking for protection plans...

Features

  • 4.7-inch extra-long 1.75" ceramic floating plates infused with argan oil and keratin, designed for thick, coarse, frizzy, and curly hair types. Glides through dense hair in one pass without snagging or pulling
  • 80 million negative ions seal the cuticle for smooth, shiny results. 11 precise heat settings from 250F to 455F with LED display. Memory function recalls last temperature. Heats to 200F in 20 seconds, reaches max in under 60 seconds
  • Worldwide dual voltage (100V-240V) with auto-adjustment for travel across US, Europe, and Asia. About 6.6ft 360 swivel cord prevents tangling during use. Auto shut-off after 60 minutes for safety and peace of mind
  • 3D floating plate technology adjusts to hair thickness for even heat distribution from root to tip. Eliminates hot spots and reduces heat damage. Suitable for daily styling, straightening, and creating waves or curls
  • Includes ONYX GLEAM flat iron, heat-resistant silicone travel pouch, and user guide.

Description

Engineered for thick, coarse, and curly hair with professional-grade technology. Video credit by itssaleida_ Video credit by _therealcoko Our extended 4.7-inch plates (30% longer than standard irons) allow you to grab wider sections of hair from root to tip in one go. Cover more hair in one pass. Argan Oil & Keratin infused ceramic plates glide smoothly to condition hair. 80 million negative ions seal the hair cuticle, lock in moisture, and deliver smooth, frizz-free shine that lasts all day. Auto-adjusts to hair thickness for even heat distribution. No hot spots. No pulling. Just smooth, consistent results from root to tip. Our precision-engineered 3D floating plates deliver full plate-to-plate contact from edge to edge, ensuring every strand gets consistent heat and tension—even on the thickest, most stubborn hair. 11 temp settings with memory function from 250°F to 455°F, you’re in full control of your style. The digital display shows your precise temperature, and the 90W heating system reaches your selected heat in about 20 seconds. For thick, coarse hair, the high-heat option keeps your style long‑lasting. The included silicone heat mat wraps right around the plates — store it the second you're done. Zero cool-down time. Zero hassle. Dual voltage (100-240V) means this straightener works in any country. The 360° swivel cord keeps your workspace tangle-free, and the auto shut-off feature gives you peace of mind. A heat-resistant pouch and styling glove are included, so you're ready to go from day one. Does this flat iron work on thick, curly, or coarse hair? Yes—it's built for it. The 1.75-inch wide, 4.7-inch extra-long plate covers more hair per pass, and 11 heat settings up to 455°F handle even the thickest, coarsest textures with fewer passes and less heat exposure. What temperature should I use for my hair type? Fine or color-treated hair: 250–350°F. Normal hair: 350–370°F. Thick or coarse hair: 380–430°F. Very coarse or tightly coiled: 430–455°F. Start low and go up if needed. The 11 digital settings give you way finer control than typical 3–5 heat options. Does this flat iron damage hair? Less than most. 3D floating plates prevent snagging, smart sensors keep heat steady with no hot spots, and argan oil plus keratin infused plates condition hair with every pass. Always use a heat protectant for best results. Can I curl my hair with this flat iron? Yes. The 4.7-inch extra-long plate lets you curl wider sections in one pass for more natural-looking waves. Rounded edges and smooth ceramic glide make it easy—just twist your wrist. Great for beach waves, loose curls, or flipped ends. What makes this different from a regular flat iron? Three things: the 4.7-inch plate is 30% longer than standard, so you finish faster. 80 million negative ions seal the cuticle—no frizz, just shine. And 455°F max heat handles stubborn, coarse hair that lower-temp irons can't straighten. ONYX GLEAM Golden Standard Styler Golden Vivid Styler Mini GoGo Mini GoGo Slim Thermal Brush Born from one belief: "Thick hair deserves better tools, not more compromises." For years, women with thick, coarse, and textured hair have been forced to use styling tools designed for someone else. Narrow plates that take forever. Short plates that miss half the strand. Gaps that leave uneven results. Terviiix was founded with a single mission: engineer professional styling tools purpose-built for thick and textured hair — from the ground up. TOO NARROW, TOO SHORT — Standard plates (1" x 3.5") force you to take tiny sections, turning a 20-minute job into an hour. PLATES THAT DON'T FULLY CLOSE — Many wide-plate irons leave gaps between the plates, causing uneven heat and missed strands. HEAT WITHOUT CARE — High temperatures without moisture protection leave hair dry, brittle, and damaged over time. ARM FATIGUE IS REAL — Repeated passes on thick hair means sore arms and wasted time, every single wash day. Whether you're rocking natural curls, protective styles, or going for a sleek straight look — the ONYX GLEAM handles it all. The wide plates and high heat are specifically engineered for thick, coarse, and textured hair that other flat irons struggle with. Perfect for: Type 3A-4C hair, natural hair, thick hair, coarse textures, and anyone who wants salon results at home. EXTRA-LONG 4.7" PLATES — 30% longer than standard irons. Grab more hairfrom root to tip in every pass. Less time, less fatigue. ZERO-GAP — Precision 3D floating plates achieve 100% plate-to-plate contact- no gaps, no missed strands, nouneven heat. ARGAN OIL & KERATIN INFUSION — Nutrients baked into the ceramic surface activatewith heat to seal cuticles, delivering salon-grade silkpress results at home. 8M NEGATIVE ION GENERATOR — Neutralizes static and frizz at the molecular level fora smooth, glass-like finish.

Product Dimensions ‏ : ‎ 12.99 x 1.97 x 1.97 inches; 1.79 pounds


Item model number ‏ : ‎ FA100


Date First Available ‏ : ‎ December 31, 2025


Manufacturer ‏ : ‎ Terviiix


Best Sellers Rank: #30,667 in Beauty & Personal Care (See Top 100 in Beauty & Personal Care) #110 in Hair Straightening Irons


#110 in Hair Straightening Irons:


Customer Reviews: 4.5 4.5 out of 5 stars (43)


Product Benefits: Curling, Hair Styling, Straightening


Brand Name: Terviiix


Resulting Hair Type: Straight, Wavy


Unit Count: 1 Count


Manufacturer: Terviiix


Number of Packs: 1


UPC: 671891666653


Number of Items: 1


Hair Type: All, Coarse, Coily, Curly, Frizzy, Normal, Thick, Wavy


Model Number: FA100


Manufacturer Part Number: FA100


Size: 2 Inch x 13 Inch


Power Source: Corded Electric


Max Temperature Setting: 455 °F


Item Shape: Flat


Color: Black


Material Type: Ceramic


Heater Surface Material: Ceramic


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Aug 22

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Exelente compra
Es Exelente lo recomiendo
Reviewed in the United States on August 2, 2026 by Viridiana

  • Works Great!
Works amazing!! I'm African American and I have to day this is the only one that actually works good on my hair.
Reviewed in the United States on April 23, 2026 by Chantel

  • Buy it
Ahhhhhhmazing !!!! Buy it !! Way better than tymo wavy L’Oréal chi brand
Reviewed in the United States on May 5, 2026 by J

  • Heats quickly. Smooth plates.
The Terviiix extra long and wide flat iron performs very well and delivers smooth results. It heats up quickly, and my hair glides easily through the plates without snagging. I have naturally curly hair and typically need to use the highest heat setting with most flat irons. With this one, I did not have to turn it all the way up to achieve sleek, straight results. It was effective while still feeling gentle on my hair. I also used it to straighten a new wig, and it handled that beautifully as well. The straightener includes a heat resistant pad and glove, which are thoughtful additions to protect your countertop and fingers during styling. The wide plates are especially helpful, as they allow you to work with larger sections of hair at once, cutting down on styling time. In addition to straightening, I was able to curl my hair and add a soft bump to the ends with ease. This is a versatile, high quality flat iron that I am very pleased with. ... show more
Reviewed in the United States on March 4, 2026 by djarac123

  • Works great
It worked great on my natural hair
Reviewed in the United States on April 17, 2026 by Ebony

  • Good
Was sent out of the country
Reviewed in the United States on April 20, 2026 by Surendra HariCharan

  • Love the large surface and wide range of temperatures.
This flat iron has a lot of features that I like. I have very fine hair that is also color treated so I always worry about applying heat to it. This one has a broad range of temperatures (250F to 455F) and goes much lower than the one Id been using. I felt like using a lower temperature might be less damaging to my hair. My favorite thing about it is the size. Because my hair is fine and straight, my hair gets weird waves or kinks with a narrow flat iron if I do not use it just right. My old one is only 1 inch wide and 4 inches long so I'd often have that happen. This one is almost twice as wide which gives helps me get smoother, straighter hair. I think the lower temperature helps withe that because I can go slower. The size also requires fewer passes over my hair. I appreciate that the tips don't get hot, which allows me to hold it by the end and not burn myself. I have significant arthritis in my thumbs so I like to use two hands to reduce the strain on them. The digital display is bright and easy to read and the power button and buttons for the temperature are easy to press, but are all inside the handle. That makes it difficult for me to see if it is on from a distance, but the good features easily make up for that minor annoyance. ... show more
Reviewed in the United States on May 16, 2026 by Angela W

  • Ek
Too bulky don’t like
Reviewed in the United States on April 19, 2026 by Shenita

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...