Charle IW011 76 Knee Support Bottom "8-minute length" Reduces stress on the knees, making walking easier. These bottoms are designed to correct knees that tend to turn outward during walking, guiding them inward. The unique structure applies force that squeezes from the outer to the inner thigh and presses from the side inward during walking, reducing the burden on the knees. Charle's original design Patent 4607233 Stored at home, no box, will be sent in a bag. Used item, but no stains. No pets, no smoking. Please refrain from purchasing if you are sensitive to used items.