Kowa Vantelin Wrist Support ports Medicine Innovation! THERAPEUTIC TAPING THEORY provides excellent joint support without limiting range of motion. Wrist Supports feature thumb-hole locking structure to promote a proper fit. Great for exercise, housework and everyday use! Medium: Wrist size (circumference): 6.5?7.5?Large: Wrist size (circumference): 7.5?8.5?NOTE: Measure circumference of arm about 3 inches below wrist. If two sizes apply, choose the larger one. Hand washable, do not machine wash. 91% Nylon, 9% polyurethane. Features: Sandwich-Style Kinesiology Tape Structure Knitted mesh structures on the front and back of the wrist provide a splint-like joint support while allowing a comfortable back-and-forth movement Thumb-Hole Locking Structure The seamless cuffed thumb-hole helps maintain the correct position of the wrist support and allows for free movement of the thumb Knitted Top and Bottom Cuffs Prevents the support fro.