Behome seat cushion set allows you to enjoy the ultimate comfortable and painless life Our back support pillow can be adjusted according to your body contour and seat cushion can also provide maximum relief for tailbone/coccyx pain, making it an excellent tool for prolonged ...Behome seat cushion set allows you to enjoy the ultimate comfortable and painless life Our back support pillow can be adjusted according to your body contour and seat cushion can also provide maximum relief for tailbone/coccyx pain, making it an excellent tool for prolonged driving or work. The seat cushion set is made of 100% pure memory sponge, which can provide the right support. It has an ergonomic "U" - shaped incision that can relieve pressure on the sciatic nerve, thereby reducing pain in the back, legs, and buttocks, and is used as an office chair cushion or car pillow.