For Most Adult: The cast hand cover fits for lower arm circumference from 6.3inch to 15inch (16 to 38 cm), so it can keep most adult hands and wrists dry.Use the shower bag for hand cast protection whenever you don't want to worry about getting your cast or bandage wet. Comfortable to Wear: Neoprene seal is much soft and comfortable compared with diaphragm ring seal which makes it easier for blood circulation. No retaining ring, the high elastic opening mouth seal makes the waterproof adult hand cast cover easily pulled on and off in a non-painful way. Waterproof: The watertight seal is made of neoprene composite elastic fabric. The new PVC waterproof hand cast protector enables you to keep bandage and cast dry for hand wound, injury, surgery while showering. Durable and Reusable: Premium polyvinyl bag provides excellent durability. The durable rubber won't rip, can be reused. Harmless to the Skin: The adult hand shower protector is latex free and no stimulation to the skin. Seal diameter: 35mm Suitable parts: adult hands Colour: transparent color Material: PVC Size: 380x240mm Package Contents: 1 * Waterproof Cast Covers Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.