SUITABLE FOR MOST SIZES OR FEET: Cast iron liner fits most adult feet. The maximum length is 11 inches and the circumference is 1.7 inches to 5.9 inches. It can cover the feet and help recover from surgery or injuries! This product is not suitable to be worn directly over exposed wounds. Please ensure that the wound is covered by a waterproof bandage or dressing.; do not recommend to use it for swimming Protege Castre 100% Waterproof: Shower Foot Protector specially designed for showering avoiding water damage to molding, just wear it over your cast before taking a shower shower safely and conveniently take a shower or bath with a cast SAFE AND EASY TO USE: The elastic rubber flange will not cut off blood circulation. No need for tape or straps. Waterproof plaster, easy to use with one hand, durable and non-tearing surgical rubber, ensuring long-term use. After each use, the protector returns to its original shape to provide a wide range of re-use possibilities. Full Seal 100% waterproof plaster protector, fully sealed with a unique vacuum ring. Wearing this waterproof protector before bathing or showering can effectively prevent water, sand and dirt from damaging the plaster model and irritating the wound, thus increasing the service life of the dressing