It helps maintain the palmar arch and hand in the reflex inhibiting position. Fabricated from EXCEL™, a volar or dorsal arm piece works with this molded finger design. Available as a pre-formed splint ready for fitting or as a pre-cut splint blank. The pre-formed splint is easily spot heated with hot water or a heat gun for a precise fit. Pre-formed splint includes straps. For proper size, measure across the second to fifth MCP joints.