Premium quality our knee cushion is made from 100% durable and high-quality memory foam. Compared to other mats it will not be flat due to the number of uses and will return to its original shape after use..ERGONOMIC DESIGN: Our orthopaedic knee pad is designed to ergonomically align the legs with the spine and achieve correct posture and healthy alignment of the knee, pelvis and spine, avoiding pressure and pain..EASY TO CLEAN: The memory foam pillow features a removable and breathable zip cover that ensures the pillow does not get hot and can be machine washed for easy cleaning..Adjustable: if you suffer from back pain, pain in the legs or knees, pelvis or sciatica, it will benefit from any surgery from back, knees, pelvis hips, pregnant women or tired and aching legs, our knee pillow will relax you..Dimensions: 26 x 21 x 15 cm. If you have any problems with our knee cushion, please refund/replace after confirmation.