Safe for Your Horse and Mother NatureCompared to Standard Rubber Mouth Bits:· A Refined Thinner Mouth· Better Strength and Abrasion Resistance· Environmentally Friendly - Engineered with Materials that pass REACH's Strict Standards Due to the contagious nature of the equine disease EHV 1 and in accordance to biosecurity measures suggested by the American Association of Equine Practitioners we are unable to accept returns on bits.