Product Description Snug fit with adjustable Velcro strap for extra support and a perfect fitDelivers muscle support and warmthBreathable neoprene constructionEasy to put on and take offMore economical than wrist tapeHand washable let air dryS/M: For wrists with a 7.5″ circumference and below(4.5″ length x 3″ top width x 2.25″ bottom width)L/XL: For wrists with a 7.5″ circumference and above(5.5″ length x 4″ top width x 3.25″ bottom width)