No need to struggle using PVC pipe. The Equine Easy Splints conform to the posterior of the horse's lower front leg. Constructed of rugged copolymer plastic, that can be slightly modified with a heat gun. Set in a straight or neutral position. Set in thick, comfortable padding, 1/4in foam. Gently flared at the edges. Easy to apply and change, reusable and cost effective. Sizing: 8in mid-fetlock to ground level. Use on Quarter horse to Thoroughbreds.