Remove metal splint and close all fasteners prior to washing. Hand wash with mild soap in warm (not hot) water. Rinse well and air dry. Do not: machine wash, tumble dry, dry clean, or use bleach or fabric softeners. Size: Measure around the wrist at smallest point. Small/Medium: 5.5-7.5 in. To Wear: 1. Loosen all fasteners and the wrap-around strap. Slide hand into the stabilizer with wide vinyl strip running along palm side of wrist. 2. Stabilizer is properly positioned when thumb is in the thumb hole and the splint rests comfortably in the palm. Tighten Slide-Guard fasteners. 3. Wrap the middle strap around wrist. Adjust all straps until fit is firm, yet comfortable.