The Miracle Collar is guaranteed to stop your horses from cribbing or your money back! Handcrafted from durable harness leather that's weather-resistant and gentle to the hair coat. Anatomically-correct fit applies pressure only when your horses attempts to crib so it can be worn all the time. Stainless steel hardware. Small fits weanlings, yearlings and ponies; Medium fits average horses; Large fits warmbloods, drafts and large horses. Browband and jowl Fleece Cover Set provides extra cushioning and protection. Browband cover slips on, jowl covers attach with velcro closures. Made of washable maize fleece; fits medium and large Miracle Collars.