CENTAUR ECO PURE RUBBER DOUBLE VELCRO BELL BOOTSGenuine Rubber Ribbed Bell Boots with Covered Double Hook & Loop Closure Safe for Your Horse & Mother Nature Compared to Standard Rubber Bell Boots: Better Strength and Abrasion Resistance Environmentally Friendly Engineered with Materials that pass REACHs Strict Standards The double hook and loop closure on this model is exceptionally durable.