Features Non-slip, breathable foam lining provides a secure hold even on the distal phalanx. Use the 3pp Finger Sling on fingers or thumb as part of a hand rehabilitation program that incorporates a static, static-progressive or dynamic outrigger splint. The 3pp Finger Sling folds to three different lengths – 3 ¼”, 3 ¾” and 4 ¼”.