100% Waterproof- With the tightly sealed rubber diaphragm ring on this arm cast covers protector, The cast covers for shower seal out water to protects your injury part 100% dry! Ideal for the watertight protection of casts, bandages, rashes, abrasions, burns, cuts, wounds & scratches.Professional Safe Material- Arm cast protector is well constructed with Medical safe material, odorless and tasteless pediatric cast cover arm, friendly to latex sensitive people. Durable surgical rubber won't rip or tear, thick and durable.Easy to Use- Soft and snug elastic rubber opening seal makes this waterproof arm cast covers easily pull on and off in a non-painful way, keep blood circulation. Washable material which is non slippery and will not stick to your arm.One Size Fits Most Adult- Waterproof Arm Cast cover Center hole fits arms diameter from 2' to 7.3. Adult arm cast cover is 22.5 inches long and fit for most men and women's lower arm, hand. Item stretch size:22.5"(L)*10"(H)*5.9"(W). Recommend for showering, bathing or light outdoor activities(not swimming).100% SATISFACTION- We provide 100% satisfaction service, lifetime quality. We are confident that you will love the Waterproof Arm Cast Cover. If you are unhappy with your Cast Covers, please do not hesitate to contact us.