FULL ARM WATERPROOF DRY PRO CAST PROTECTOR.....durable and reusable. Easy as 1-2-3. Slip on over the cast, splint or bandage. Pump out the air with bulb that is attached. Once you are done you simply let the air back out by sliding two fingers into the top of the cast protector and letting the air back in, then slide off the arm.
To determine proper size measure one inch above the cast around the circumference of the arm.
FA 12 - Extra Small full arm fits 15-17 inches
FA 14 - Small full arm fits 17-22 inches
FA 16 - Medium full arm fits 8.75 - 10 inches
FA 18 - Large full arm fits 10 inches and above