?Safe?Waterproof cast cover arm has obtained FDA registration and CE certification, washable medically safe materials, latex-free, tasteless, easy to washable. and we are guaranteed for 2 years after sale. ?Almost Fit All People?Arm cast length- 21.65 inch / 55cm approx, width 9.84 inch /25cm approx, inner diaphragm opening (expandable) - 1.57 inch /4cm approx. Flexible design with extra space for free movement. This cast protector is suitable for men & women, kids. And can be worn on the left or right hand. Before purchg, please measure your circumference with a bandaged or cast arm. ?Wide Usage?Arm cast cover is best for shower and bath. Especially for people who is recovering from surgeries, skin problems, waterproof cover protects your injured part. Recommend for showering, bathing or for outdoor activities when recovering from injuries, surgeries, accidents or when suffering from medical conditions such as rashes, burns, skin problems, wounds. ?Easy to Put on or off?Flexible and comfortable design with no retaining ring and high elasticity opening seal make this arm cast cover easily pull on and off in a non-painful way, it's wide enough to have your cast go through it, but tight enough to not allow any water pass through. After each use, the seal regains its shape for extensive reusability. ?100% Waterproof Design?Our cast protector is made of medical grade PVC material, soft, no stimulation to the skin, non-slippery will not stick to your hand, after the shower or bath your cast is still bone dry, and elastic sealed diaphragm will not cut off blood circulation.