Reduces Pressure in Both Areas The Tshaped opening corresponds to the sacrum and coccyx of the human body when sitting or lying down The hollow design of the sacrum and coccyx can effectively reduce pressure in two places Triangular Slope Design The triangular ramp design is suitable for bedridden use and prevents lumbar spine injuries The ergonomic design of the seat cushion provides maximum support and comfort while reducing pressure on the coccyx to promote healthy recovery Comfortable Bed Sore Cushions for Butt Made of super high quality memory foam and cooling gel Sitting for a long time can cause a lot of pressure on the crotch Slotted crotch design can reduce crotch pressure and stuffiness No Deformation 18x15x28inch 45x38x7cm slow rebound soft and firm no deformation when sitting for a long time Widely Used Can be used in different scenarios to facilitate different usage needs providing superior comfort for any office home travel car seat airplane seat or wheelchair Note The blue model is a gel model can be cooled can not touch the water with a black cover models antioxidant dirtresistant can not touch the water with a yellow leather cover models waterproof can be washed