Multifuntion pillow: the ring pad can prevent legs friction happens decubitus, help smooth lower back pain or arthritic joints. Sponge filling and pure cotton cloth cover, more and comfortable. The use of high elastic sponge, comfort, softness, roll design easy to use, can be directly set in the joints. Features - Color: Blue.- Material: Sponge.- Size: About 17x17x10cm/6.69x6.69x3.94 inch.- It fits for when you lie on the side clamp knee, ankle pads, wrist pads, prone head pad, etc.- Long-term bedridden patients or elderly patients with local trauma or have had bed sores, Other parts of the patients can not be gravity pressure.- Circle ring pad for easy wearing and not easy to fall off.- It promotes the body parts of the body pressure to reduce the pressure of the pressure tissue and friction, promote blood circulation, prevention of pressure sores.- The scientific thickness to avoid the heel and ankle joint compression can effectively prevent the inside and outside the ankle and heel pressure sores.Packing list: 2 x sponge mat