1、This product can be adjusted freely between 0°‑120° to meet different needs. 2、Can provide support, fixation, functional activity exercise, load and so on. 3、It takes only a few seconds to adjust the angle, which is simple and convenient, and easy to operate. 4、Improve work efficiency. 5、Sturdy to use. Features: 1. This product can be adjusted freely between 0°-120°. 2. Can provide support, fixation, functional activity exercise, load and so on. 3. It takes only a few seconds to adjust the angle, which is simple and convenient, and easy to operate. 4. Improve work efficiency. 5. Sturdy to use. Specification: Material: aluminum alloy support strip Weight: about 680g / 23.99oz Size: S Length: 35cm , Bracket: 32cm Applicable Leg Circumference: Lower thigh (near knee): 36-43 cm, upper calf (near knee): 32-38 cm Suitable Groups: teenagers, adult women (thin and medium sized), adult men (thin) Height Range: 155-180cm Weight Range: 50-75kg Package List: 1 x Knee protection Instructions: 1. The fixing strap at the upper end of the adjustable knee orthosis is fixed at the thigh above the knee joint. Fix the calf strap at the lower end of the knee orthosis to the calf. 2. After fixing the thigh strap and the calf strap, connect the adjustable knee joint hinge with the thigh strap and the calf strap. 3. Fix the hook and loop fastener through the plastic ring and the fixing straps at both ends. 4. Adjust the scale of the dial to the appropriate angle. Note: When measuring the leg circumference, you need to measure the thigh circumference at about 15cm or so from the knee and the calf circumference at about 13cm from the knee to get a relatively accurate measurement. When adjusting the angle, the arrow of the angle adjustment knob should be aligned with the scale arrow, otherwise it will be stuck and unable to lock or unlock the angle.