How does this attach to the chair? From the description it just appears to be placed on top but does that actually hold it in place?

It has a rubbery feeling rough surface on the underside that grips leather really well. I have had it for months and it has never slipped around. Same results on a wooden chair and a plastic covered piano stool. The cover can be removed for washing too.

Can this be used safely in the car while driving?

Possibly though it’s not designed for car use and may foul the seat belts etc. It is quite deep so may act as a booster seat though again it is not designed for car use. Personally, I wouldn’t use it in a vehicle.

Will my bum be sore after sitting on this for several hours at a time?

I have been using this for some months now and my bum doesn’t get sore any more. I do get up and walk about a bit on a more regular basis - so don’t rely just on this - but I have been impressed (and I was sceptical)!

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Ergonomic Seat Cushion – Memory Foam Comfort for Tailbone, Hip & Coccyx Sitting Support – Office Chair, Car, Desk, Wheelchair & Gaming – Black

Product ID: 226546403

Details

Brand
5 STARS UNITED
Colour
Black
Fill material
Memory Foam
Size
Large
Special feature
Memory Foam &

🧠Premium memory foam adapts to you

🪑46x36x7.5 cm ergonomic fit

🛡️Non-slip base for secure seating

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22573 kr

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Sold byAmazon IcelandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🪑 Sit Smart, Feel Elite — Upgrade Your Seat Game Now!

BREATHABLE EASY CARE - Removable mesh cover ensures airflow and is machine washable, keeping your cushion fresh and hygienic.
POSTURE PERFECT DESIGN - U-shaped contour promotes natural spine alignment, reducing pressure and fatigue during long sitting sessions.
PORTABLE RELIEF ON THE GO - Built-in handle and lightweight design let you carry premium comfort from home to office to road trips effortlessly.
TAILORED ERGONOMIC COMFORT - Medium-firm memory foam cushions your tailbone, hips, and coccyx for all-day support without compromise.
UNIVERSAL FIT FOR EVERY SEAT - Perfectly sized to enhance office chairs, car seats, wheelchairs, and gaming setups—comfort wherever you sit.

The 5 STARS UNITED Ergonomic Seat Cushion combines medium-firm, premium memory foam with a U-shaped ergonomic design to provide targeted support for the tailbone, hips, and coccyx. Sized at 46 x 36 x 7.5 cm, it fits a variety of seating options including office chairs, cars, wheelchairs, and gaming chairs. Featuring a breathable, removable mesh cover and a non-slip base, this cushion ensures lasting comfort and hygiene. Its lightweight build and built-in handle make it the perfect portable solution for anyone seeking relief from prolonged sitting discomfort.

Specifications

ASIN	B07HD8B9SP
Age Range Description	Adult
Best Sellers Rank	187 in Automotive ( See Top 100 in Automotive ) 1 in Car Seat Cushions
Brand Name	5 STARS UNITED
Coin Variety 1	Memory Foam,Seat Cushion
Colour	Black
Country Of Origin	China
Customer Reviews	4.3 4.3 out of 5 stars (34,105)
Fabric Type	Memory Foam
Fill Material	Memory Foam
Item Dimensions L x W	36L x 46W centimetres
Item Dimensions L x W x H	35.6L x 45.7W x 7.6H centimetres
Item Firmness Description	Firm
Item Shape	Semicircular
Item Type Name	Seat Lifting Cushion
Item Weight	1 Pounds
Manufacturer	5 Stars United LLC
Manufacturer Part Number	6018112977916
Material Type	Memory Foam
Material Type Free	Latex Free
Model Name	Ergonomic Seat Cushion
Model Number	Seat Cushion Pillow for Office Chair
Number of Pieces	1
Pattern	Solid
Product Care Instructions	Foam core is not washable. Cover is machine washable in cold water. Do not bleach, tumble dry, or iron. Air dry only
Recommended Uses For Product	Sitting
Size	Large
Special Features	Memory Foam Core, Breathable & Removable Cover, Non-Slip Base, Built-In Carry Handle
Specific Uses For Product	Hip & Coccyx Sitting Support
Target Use Body Part	Buttocks, Legs, Whole Body
Unit Count	1.0 count

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