The anti-crib collar from Premiere is a way to prevent a crib-biting horse from inhaling air. In first hand, a horse like this needs stimuli, a lot of outdoor time in company and exercise, but also a check of the status in the stomach ulcers. There can be many reasons why this cannot be fully filled, such as injury with subsequent box rest. Once a horse has started crib-biting, it is extremely difficult to prevent the behaviour and then a crib-biting strap may be appropiate. The reason why you want to prevent the horse from inhaling and swallowing air is because the risk of colic increases significantly. This crib-biting strap is made of aluminium and leather.