Designed to cover tire cuts and scrapes from the inside, the TB-2 Tire Boot is constructed of a thin, strong, waterproof vinyl membrane with fiber weave reinforcement to keep the inner tube in place. Simply the fastest, easiest and most secure way to temporarily repair a cut tire. A super strong pressure sensitive adhesive assures the boot stays in place in any tire, high or low pressure. A true ride saver. Each kit contains three boots, each 45mm by 75mm.