This splint corrects contractures of the PIP and DIP joints. Sizes measure volar portion of finger to be covered by length of splint. To size, measure length from the MP crease to fingertip. Length ERP5525-01 XSmall: 2" ERP5525-02 Small: 2.5" ERP5525-03 Medium: 3" ERP5525-04 Large: 3.5" ERP5525-05 XLarge: 4"
