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Sunny Hair 18 Inch Genius Weft Hair Extensions Human Hair Balayage

Based on 72 reviews
Condition: New
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$45.99
Save $91.26 was $137.25

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At a glance

Condition
New
Size
18In-60g
Model
GUHW_4-27-4_18
Dimensions
18 x 1 x 1 in; 2.12 oz
Weight
60 g
Material
Human Hair
Hair Type
Straight

Features 6

  • Ultra-Thin & Seamless Look: Designed with an ultra-thin profile, the weft is only about 0.3mm to 0.8mm thick (60% thinner than traditional machine wefts). It lies completely flat against the scalp, making it virtually invisible with no bulky bumps
  • Customizable & Cut-Anywhere: Unlike traditional wefts that unravel when cut, Genius Wefts allow for custom cutting anywhere, ensuring a perfect fit without shedding or unraveling
  • Lightweight & Maximum Comfort: The ultra-thin base reduces tension and pulling on the scalp, ensuring comfortable, all-day wear without headaches, even when styled in high ponytails
  • Durable & Minimal Shedding: The genius weft hair base offers superior tensile strength. It is highly resistant to shedding and tangling during daily brushing, washing, and styling

Description

Lightweight and Comfortable: Genius Weft Hair Extensions are made to lie flat and blend seamlessly with your natural hair. Some Essential Tips: Curling irons or flat irons can be used for styling, but always use a heat protectant spray and keep the temperature below 160°C (320°F). Experience the difference of real human hair with Sunny Hair's weft series. Choose from various types for voluminous, full-bodied styles that stay beautiful wear after wear. 1. How long do Genius Weft hair extensions last? They typically last two to three months with proper care and installation. The lifespan depends on how well you care for them - using gentle shampoo, conditioning regularly, and minimizing heat styling helps extend their durability. 2. Can Sunny Hair Genius Weft hair extensions be dyed? Yes, professional dyeing is recommended, and there are some important tips: 1. The extensions are made from real human hair and can be professionally dyed to darker shades. 2. Bleaching is not recommended as it can damage the hair. 3. Are these Genius Weft hair extensions reusable? Yes, they are reusable. Our Genius Weft hair extensions have a natural reusable material feature and can be removed and reapplied multiple times. 4. How to prevent tangling? 1. It is recommended to perform a deep hair treatment once a week. 2. Use a silk or satin pillowcase: it reduces friction overnight and prevents tangles. 3. Never sleep on wet hair: make sure it’s completely dried before bed. Genius Weft Hair Sew In Weft Hair 50g Butterfly Weft Hair 100g Butterfly Weft Hair Sew in Hair Extensions Genius Weft Hair Extensions Butterfly Weft Hair Extensions

Specs 23

Product Dimensions 18 x 1 x 1 inches; 2.12 ounces
Item model number GUHW_4-27-4_18
Manufacturer Weihai Senlian Trading Co., Ltd
Brand Name Sunny Hair
Hair Type Straight
Package Size Name 60g
Number of Items 1
Item Highlight Sew in Hair Extensions Durable 60g, be Styled With Heat, Breathable, For Thin Hair, Healthy End, Add Volume No Smell

Frequently asked questions

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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.

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Top Amazon Reviews


Hit Purchase :)
Color: PU Butterfly-#4P/27-Brown Highlights Size: 14 Inch-50g
Took a chance on these and SO HAPPY I did! One simple row and $40 later and my hair looks great still after 3 weeks. I have recommended to so many people. I have worn extensions in the past that cost me a fortune and just as happy with these but so much easier to manage. I can easily pull my hair up too. For sure will be purchasing again. ... show more
Reviewed in the United States on August 22, 2026 by Matthew Miller

Great product
Color: Genius-#4/27/4-Dark Brown Balayage Caram... Size: 16In-50g
Daughter purchased these after the see ins tore a lot of her hair out. These were recommend highly from a few high school students. They lasted 2-3months. Easy to use. The color and blend was perfect match.
Reviewed in the United States on August 24, 2026 by Lara Danielle Corley

Great quality
Color: Genius-#Natural Black Ombre Silver 1B/S/1B Size: 14In-50g
Great quality, no shedding, was pretty thin but I didn’t mind because it ended up matching my hair perfectly. Will buy again.
Reviewed in the United States on August 16, 2026 by Jennifer Hill

Horrible!!!
Color: Genius-#Natural Black Ombre Silver 1B/S/1B Size: 18In-60g
Horrible!!!!! Washed and prepped and they shed horribly strands broke off with GENTILITY BRUSHING AFTER FIRST WASH!!!! And they offered me 20% refund and that’s it!!! They are not usable!!!!!
Reviewed in the United States on March 27, 2026 by Kayla Nichols

Beautiful- great value!
Color: PU Butterfly-# 16P/22-Golden Blonde High... Size: 20 Inch-50g
These were thick, well made, curl well and the color was spot on. I got 150 grams. Daughter’s hair turned out amazing. The hidden bead system worked out so well- lays well and honestly didn’t take as long as I expected. Good buy.
Reviewed in the United States on August 19, 2026 by Danielle Mulholland

Great extentions
Color: Genius-# 16/22-Golden Blonde Highlights Size: 18In-60g
LOVE these hair extentions! Some of the best I’ve tried. I always buy Amazon extentions and these were perfect. Color was spot on!
Reviewed in the United States on August 28, 2026 by Kristin Longest

Extensions
Color: Genius-# 16/22-Golden Blonde Highlights Size: 18In-60g
The best
Reviewed in the United States on August 23, 2026 by Carol

Love this
Color: Genius-# 1-Jet Black Size: 18In-60g
Absolutely love the hair. It’s perfect, no shedding at all. Soft and the weft is thin and not bulky.
Reviewed in the United States on July 14, 2026 by Adrienne Faulkner
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