Product Description
ARM: Measure the circumference of the arm just above the cast or bandage (If the end of the cast is very close to the elbow, measure mid bicep.)
LEG: Measure the circumference of the leg just above the cast or bandage (If the end of the cast is very close to the knee, measure mid thigh.)
Choose a DryPro that is at least 1 inch SMALLER than your measurement.
To create a good vacuum seal the opening needs to be smaller than your limb.