Coil springs assist PIP and DIP joints into extension by maintaining them in full extension. Ideal for helping reduce tightness from flexor tendon and volar joint and soft tissue tightness. Best suited for contractures up to 45° that feel elastic when stretched. Contoured proximal and distal pads distribute pressure evenly. Hand wash, air dry. For size, with finger straight, measure corresponding finger on unaffected hand from distal palmar crease to middle of distal phalanx.