My child used this for a week. There are no tears or damage, and it's still usable, so it's available for those looking for one. It fit my elementary school child's foot well, and no water got in. For children's feet, length 50cm PRo° [Introduced in medical institutions] [Designated by the Judo Therapy Association] Waterproof cast cover shower cover [New Waterproof Protector II Premium] Doesn't constrict blood vessels, skin-friendly new material, for showers and baths, cast cover