Approximately 60cm around, M-L size. Specifically designed to immobilize the knee, with plates inserted from the thigh to the shin at the back of the knee, useful for cast life and rehabilitation. Provides mild compression during walking, and pressure massage improves internal circulation, helping to manage swelling and edema. 【Supports Walking】 Eliminates dragging of the foot during cast immobilization, supporting easier walking. Made of soft material that won't injure the foot. 【Application】 Use with cast shoes to go indoors, outdoors, or to the hospital. You can walk around the hospital or facility without worry if you wear the supporter securely. Adjustable straps allow for a wide range of use.