The Blister Relief, 23 Pieces, features a variety of pre-cut shapes and sizes of moleskin. Used for the prevention of blisters, corns, and calluses. The medical-grade, hydrocolloid island dressings included in this kit protect users from further friction and provide necessary cushioning and soothing relief for blisters. The affected foot area stays protected for hours, even while remaining active. Handy for any sport and outdoor activities. The Blister Relief is a great addition to any first aid kit.