Z-Athletic Beginner Rainbow Hook and Loop Gymnastics Grips This beginner grip is a basic palm protector made of soft leather Polypropylene wrist cuff and hook and loop closures Comes in a variety of colors Take a measurement, in inches, from the wrist to the base of the fingers. Size Measurement (Small: 2 9/16") (Medium: 3 3/8") (Large: 3 3/4")