And easy to use,just directly set in the joints. Our foot elevator cushion provides necessary air circulation for accelerated tissue granulation and healing of existing pressure sores. Our foot pillow provides excellent, firm support while relieving pressure on your foot and leg. You can use it when you are relaxing in bed or sitting down in your favorite chair. Leg for elevation , It fits for when you lie on the side clamp knee,ankle pads, wrist pads, prone head, etc.