Satisfaction Service: Purchase with confidence. If you're not satisfied with our arm cast sleeve covers, just send it back for a full refund or exchange a new one.Waterproof Protection Designed: this kids and youth arm cast cover protector fully sealed use a unique flexible rubber that creates a vacuum and a securing plastic ring. Protect the bandage, wound, injury part isolated from moisture and water, keep casts and bandage dry when bathing, showering or other outdoor activities.Safe and Durable Medical Grade Material: the cast cover bag made of reusable, durable and thick material, high-quality PVC bag, polypropylene and rubber that won't rip or tear, reusable quality PE cover is for durable use.Arm Cast Protector: The length of the kids arm cast cover is 18.5 inches, which is enough to cover your kids arm. The center hole is made of elastic material, which can stretch well and protect your arms or bandages from getting wet during bathing.Easy to Use: The cast protector can easily slide on arm cast. No need for tape or straps. Easy to pull on / off without worrying about cover tear up.Note: The distance of wearing and pulling cannot be greater than the diameter of the sealing ring.