Not easy to deform:-The hemorrhoid pad is made of high density memory foam, it can provide extra support if you sit more than 8 hours a day. The medium firmness of the donut cushion will last for years. Unique Ergonomic Design:- The donut-shaped tailbone pad has a large-diameter round shape that can elevate the affected area and avoid pressure and hemorrhoid pain. It may not relieve all aches and pains, and performance varies from person to person. Non-slip bottom and machine washable cover:- Non-slip rubber sole for coccyx pads , can be used on any surface, not easy to slip (on flat surfaces). Simply remove and wash the cover in the washing machine. Breathable Cushion Cover:- The orthopedic donut seat cushion for back pain relief comes with a breathable 3D mesh fabric cover. Compared to other inflatable pillows on the market, the hemorrhoid seat cushion allows air to pass through, keeping your skin dry all day. Uses:- Our coccyx donuts are 47cm* 38cm*9cm and can fit many kinds of chairs and seats. The handle has a donut-shaped design so you can take it anywhere.