Self-adhesive backing allows for use with most materials (not skin) and 3mm thick and 3cm in diameter. It also may be used for the following:To reduce abrasions, friction and pressure points in splints, casts, braces or footwear. Can be fabricated with insoles and placed under individual metatarsal heads. To protect the ulnar styloid. Individual cushions form parts of the hand such as knuckles in casts and splints.