The Original Post Operative Pin® Knee Brace (POP) has a lightweight drop pin hinge and laminate liner. It controls flexion and extension in 7° increments from 0° to 120° and it allows for free range of motion or can be locked in full extension. The Post Operative Pin® Knee Braces are indicated for postoperative immobilization and protected range of motion associated with ACL, PCL, MCL and LCL surgeries. The versatile Original POP® Knee Brace is available inlong or short length models with a Full or Cool version thigh and calf wraps for patient comfort. The long brace has breakaway capabilities and can be converted to the short length for long-term rehabilitation.The short & long liner can accommodate up to a 27" thigh and 19" calf circumference.