3M™ Futuro™ Comfort Lift™ Knee Support, Large, 1 Box of 3 Penlights Knee Hi * Classic Black Strengthen muscles Knee Hi * Classic Black * 20 30 mmHg * Large * Ankle Circ 10 113 8 Calf Circumference 12 1 2 18 1 8 * Beautifully sheer hosiery Durable long lasting * Sandalfoot styling * Gradient compression for relief and prevention of venous disease * Therapeutically effective sheer lightweight and fashionable * Designed to easily fold to save space *Unit is only 10 wide when folded *Height adjustable from 28 to 41 *Fixed width dimension of 25 *1 ´ diameter stainless steel handrails for easy use and durability *Heavy gauge steel base plates uprights and fittings *Black powder coated chip and wear resistant finish *Each upright telescopes up in 1 ´ increments and locks into (10) height positions with fail safe ball tip locking pin *Weight Capacity: 400 lbs Flexible fabric promotes a full range of motion weak and injured knees