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FLEX STACK PACK 3-Piece Storage System - FSM1101-3

  • Based on 43 reviews
Condition: New
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Availability: Only 6 left in stock, order soon!
Fulfilled by OnTime Supply

Arrives Mar 8 – Mar 12
Order within 57 minutes
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Style: 3-Piece System


Features

  • QUICK-CONNECT - Fast and effortless interlocking connectivity allows you to quickly stack and unstack toolboxes
  • 250 LB. LOAD CAPACITY - Heavy load capacity for tools, materials, and accessories
  • IMPACT PROTECTION - Built with an impact-resistant polypropylene body and aluminum-reinforced corners to withstand the toughest jobsite conditions
  • IP65 PROTECTION - All-weather protection to shield your tools from the elements when you're on the job
  • 9" RUGGED WHEELS - Conquer any terrain with oversized rubber wheels
  • REMOVABLE TELESCOPING HANDLE - Extends for easy jobsite navigation and removes fully for storage in a covered truck bed when your work is done
  • EASY ACCESS - Gas struts aid opening and closing of the lid, and keep it propped open securely for easy tool access when needed
  • WHAT'S INCLUDED - (1) FLEX STACK PACK Rolling Tool Box, (1) FLEX STACK PACK Medium Tool Box, (1) FLEX STACK PACK Suitcase Tool Box, (2) Removable Accessory Trays, (4) Organizer Cases with dividers
  • FULL RANGE COMPATIBILITY - STACK PACK Toolboxes, organizers, accessory cases, and toolbox attachments are endlessly configurable across the full STACK PACK system
  • ONE-YEAR WARRANTY - Register your new products and get a limited one-year warranty on your FLEX STACK PACK tool boxes and organizers

Description

Pack everything you need for a day on the job with the FLEX STACK PACK™ 3-Pc. Storage System. Quick-connect interlocking attachment points offer fast and effortless connectivity to customize your layout with any piece in the STACK PACK™ storage system. IP65 all-weather protection shields your tools and accessories from the elements, and an impact-resistant polypropylene body with aluminum reinforced corners offers protection from the toughest jobsite conditions. Complete with the STACK PACK™ Rolling Tool Box, Medium Tool Box, and Suitcase Tool Box, you’ll have enough storage to bring the workshop with you to and from the jobsite. Protected by a one-year limited warranty when registered within 30 days of purchase at registermyFLEX.com.

Brand: FLEX


Material: Polypropylene


Color: Grey/Black


Product Dimensions: 22"L x 19.2"W x 35.1"H


Water Resistance Level: Water Resistant


Brand: ‎FLEX


Material: ‎Polypropylene


Color: ‎Grey/Black


Product Dimensions: ‎22"L x 19.2"W x 35.1"H


Water Resistance Level: ‎Water Resistant


Number of Compartments: ‎6


UPC: ‎840163201315


Capacity: ‎250 Pounds


Manufacturer: ‎FLEX


Part Number: ‎FSM1101-3


Item Weight: ‎54.2 pounds


Item model number: ‎FSM1101-3


Batteries: ‎12V batteries required.


Style: ‎3-Piece System


Finish: ‎Brushed


Pattern: ‎Solid


Shape: ‎Rectangular


Power Source: ‎hand_powered


Item Package Quantity: ‎1


Included Components: ‎3-Piece Tool Box System


Batteries Required?: ‎No


Date First Available: July 6, 2023


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Mar 8 – Mar 12

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
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  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Tough, versatile, maneuverable.
This is the second time I bought them. I've had my first set for 3 years and zero complaints. They are tough and durable. Bought a second set for my son who's setting up his own truck. His will be stored outside the truck. So we'll get a very good weather test. I'll follow up later with how that goes. But I find these well worth the money. The wheels are my favorite part. They make dragging it anywhere easy. ... show more
Reviewed in the United States on February 14, 2026 by Amazon Customer

  • A definite buy for sure
This was definitely worth the money. Rolls very good even over 2x4's. Tons of room and unstacked pcs are very manageable for me with severe arthritis. Solid latches and handles. Only thing that I would like better is the trays. Wish the handles went from end to end instead of taking up a lot of valuable space in the middle for things like circular saw blades, but not a major issue considering how great this product is. Definitely recommend this to anyone that wants high quality and functionality. ... show more
Reviewed in the United States on October 29, 2025 by Slim

  • A+
I was looking at some other top competitors tool boxes that were similar Flex offers a much better design for a lot cheaper price. I recommend this setup to everyone. I’m an irrigation contractor and I move the box around from my truck to my shop to out in the front yard of customers house. I do this with ease. It’s very versatile and built very well ... show more
Reviewed in the United States on October 12, 2025 by Matt Pennell Matt Pennell

  • This set was nice and worth the money.
For a product of China they seem to be quality built, they arent hige but they arent small either, if you organize them properly they can hold quit a bit of stuff. Definitely worth the money. I especially like the latching style. And the front feet on the rolling box has rubber so it roll away as you grab stuff out. ... show more
Reviewed in the United States on November 22, 2024 by SJ

  • Heavy duty!
Very heavy duty, easily moved. It can get heavy depending on what you put in it, but still moveable. The handles on each one help to move them individually! Definitely recommend!
Reviewed in the United States on December 6, 2025 by Lori

  • Caja FLEX
Exelente producto realmente son jamás cajas muy Resistentes, son un tanque de guerra super duras pero a la vez livianas.
Reviewed in the United States on February 12, 2026 by juan m.

  • What can’t you fit in your? Lol
The space is amazing
Reviewed in the United States on February 22, 2026 by JOEL TOLEDO

  • Lots of storage!
Great storage, great quality and looks and functions better than the big name tool brand options. Love it!
Reviewed in the United States on January 7, 2025 by Christina England

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