Showman Black Magnetic Therapy Sport Boots. Breathable neoprene construction with Velcro straps and three (3) magnets on the outside of each boot. Magnetic therapy boots relieve pain and inflammation, increase blood flow to support healing, decrease fluid retention and fight infection. These boots are to be used in short intervals and not used during exercise. Always consult a veterinarian for medical advice before use. Sold in pairs. Available Sizes: Small - 13.5"W x 5.5"H, Medium - 14"W x 6"H & Large - 15"W x 6.5"H.