Made of durable PVC sheeting with an inner layer that provides superior molding around the limb. Single chamber design allows for even air distribution around the extremity used for edema reduction. Double chamber design allows for varying amounts of pressure in each chamber to assist with contracture reduction and tone control. Designed for stroke, head injury, MS, CP, for muscle facilitation in neurological rehab and post surgery edema management and contracture reduction. Apply to limb and inflate. Pressure should not exceed 40mm Hg. To size, measure the length of the extremity. Measurement is the length of the splint before inflation.