DescriptionMultifunction 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-Material: Cotton and linen + sponge.- 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. - Reduce the pressure of the pressure tissue and friction, promote blood circulation, prevention of pressure sores. - Suitable for using while you sleeping in bed or sitting down in a chair.