The Dog Leg Wraps help injuries heal more quickly and ease arthritic pain. Constructed of a neoprene outer shell, infused in the wrap’s inner fabric with the state-of-the-art Welltex fabric containing ceramic powder. The ceramic reflects your dog’s natural body warmth and creates a soothing far infrared thermal warmth. Large The unique ceramic fabric creates gentle warmth, which is a well-recognized method used to relieve and heal injured muscles, joints, and tendons. The three attached Velcro™ strips let you quickly fasten and remove the wraps, as well as adjust their snugness. These leg wraps are ideal for both prevention and injury recovery.Sizes: SizeWidthLengthSmall5½& quot;4¼"Medium6&qu ot;4¾"Large7 1/8"5½" Color: BlackSold as a PAIRInstructions for Measuring: Take a circumference measurement around the dog's leg above the paw for the width. The length is the length of the wrap. Refer to the size chart on the product page to determine what size would best fit. NOTE: Our small size is NOT for the smallest of breed.Care: Machine washable up to 90°F or 30°C. Use normal detergents that do not contain bleach or fabric softeners. Air dry only, do not tumble dry. Back on Track products are not to be compared with magnetic therapy.For specific injuries, we recommend that you speak with your veterinarian or therapist before starting treatment with our Leg Wraps. Not for use on pregnant dogs.