Why choose our Waterproof Cast Covers?. Durable & Comfortable. Easy to Use: Stretches easily over the cast and seals tightly without assistance. Unit Quantity: 3.0 Features: Reusable,100% waterproof,tight seal,very easy to use,lightweight design,reusable protection,quick application,comfortable fit,no-leaking experience Material: Plastic,polyethylene Type: Cast Cover.