Back on Track Therapeutic Horse Head Cap, Medium to Large Back on Track Therapeutic Horse Head Cap Covers Both the Atlas and the Axis It Has Velcro Closures Around the Ears and Laces on Each Side to Fasten Under the Throat for Optimal Adjustability and Comfort Back on Track Therapeutic Horse Head Cap Relieves Tired, Sore Muscles By Using Your Horse's Own Body Warmth The Back on Track Horse Head Cap is Made from Fabric Infused with Ceramic; The Ceramic Reflects Natural Body Heat and Creates Soothing Infrared Warmth Tight, Stiff Neck Muscles Are a Thing Of The Past with Our Therapeutic Horse Head Cap