Does it work for big butt/high butt people?

It depends on how big is but normally works.

let me get this straight -- i need the chair AND i need the cover? Whats the difference b/t sitting crosslegged, on top of a small cushion and this?

The cover is not necessary but we recommend to who want a little more cushioning. The difference b/t Curble Chair and a kneeling chair is that Curble Chair helps you to sit up straight by supporting your back while providing the comfort of your legs.

Where do find the size chart?

Please refer to the video. Curble Grand is W16.5 x D12.7 x H13.6 inch which is a suitable size for adults. We also have other smaller models for petite, teenagers, and kids.

Where can I purchase replacement cushions and stops? How much more cushion does the cover provide? Thank you.

We are working on the replacement cushion to launch it on Amazon within 2023. We highly recommend the cover because you can use Curble Chair more comfortably since it covers all the edges of the Curble Chair and provide good ventilation with air mesh material.

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Grand 2 Pack– Extra Wide Ergonomic Seat Support, Sit Straighter Without Effort, Passive Posture Trainer for Office, Home & Car (Black)

Product ID: 384895323

Details

Brand
curble
Color
Black
Fill Material
Foam
Size
W16.5 x D12.7
Special Feature
Ergonomic

🌍Portable for office, home & car

💪Supports up to 1,190 lbs load

🪑Extra wide ergonomic design

$U17542

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Sold byAmazon UruguayDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🖤 Sit smart, stand tall—your back’s new best friend.

TOXIN FREE COMFORT - Made in Korea with VOC-free materials, ensuring safe, healthy use all day.
ENGINEERED FOR ENDURANCE - Firm PU foam supports heavy loads up to 1,190 lbs without losing shape.
SIT STRAIGHTER INSTANTLY - No straps or adjustments—just sit and feel natural posture alignment.
ANYWHERE ANYTIME SUPPORT - Lightweight and portable—transform any seat into an ergonomic haven.
BUILD BETTER HABITS EFFORTLESSLY - Passive posture trainer that helps you maintain perfect alignment without thinking.

The Curble Grand is an extra-wide, ergonomic seat support designed to improve posture passively without straps or adjustments. Made with durable, toxin-free materials and engineered to support up to 1,190 lbs, it’s lightweight and portable for use at the office, home, or in your car. This innovative posture trainer encourages natural spinal alignment, helping busy professionals build healthier sitting habits effortlessly.

Specifications

ASIN	B09HXL21J3
Age Range Description	Adult
Best Sellers Rank	#18,717 in Office Products ( See Top 100 in Office Products ) #102 in Back Cushions & Seat Cushions
Brand	curble
Brand Name	curble
Coin Variety 1	Lumbar Support
Color	2 Pack Black
Customer Reviews	3.9 out of 5 stars 66 Reviews
Fabric Type	Polyester
Fill Material	Foam
Included Components	2 Curble Chair Adult
Item Firmness Description	Firm
Item Type Name	Back Support, Lumbar Support
Item Weight	2.3 pounds
Manufacturer	ablue Co., Ltd.
Manufacturer Part Number	CCGB2
Material Type	Polyamide 6 resin
Material Type Free	Lead Free, PBDE Free
Model Name	Curble Chair_Grand_PL_Black_2P
Model Number	CCGB2
Number of Pieces	2
Pattern	Solid
Product Care Instructions	Hand Wash Only
Recommended Uses For Product	Reading, Sitting, Studying
Shape	L-shape
Size	W16.5 x D12.7 x H13.6 inch
Special Feature	Ergonomic, Lightweight, Portable
Special Features	Ergonomic, Lightweight, Portable
Specific Uses For Product	Posture Correction
Target Use Body Part	Back
Unit Count	1 Count

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How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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$U17542

Duties & taxes included

In stock

Sold byAmazon UruguayDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Uruguay.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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