Features： 1、Convenient hook & loop, stick firmly and not easy to loosen, knee protection pad, protect knee friction. 2、Three ? stage separation design at the same time, uniform force arbitrary adjustment position. 3、Help you correct bad walking habits caused by the formation of ugly leg curve. 4、Balances your leg muscles to make your legs straight. Convenient to use. 5、Can be used when watching TV, studying, sleeping and resting, easy to use. Specification： Item Type: Leg Correction Belt Material: PET polyester fiber + polymeric fiber SizeAnkle BeltCalf BeltThigh Belt M40cm / 15.7in46cm / 18.1in50.5cm / 19.9in L45.5cm / 17.9in51cm / 20.1in55.5cm / 21.9in XL50cm / 19.7in57cm / 22.4in64.5cm / 25.4in XXL55cm / 21.7in62cm / 24.4in69.5cm / 27.4in Usage: 1. Place the belt flat 2. Fix the bare foot position first 3. Fix the lower leg position again 4. Fix the thigh position Features: 1. This product will help you correct the ugly curve of your legs caused by bad walking habits. 2. Balances your leg muscles to make them straight. 3. The recommended gymnastic exercises will have a better effect. 4. The effect is better when used for a long time. 5. It can be used when watching TV, studying, sleeping and resting Warm Tip: Because everyone's leg thickness is not the same, it is suggested that if you know your leg shape is thicker than normal people, it is recommended to choose a bigger size! (M size is special for children) Package List： 1 x Thigh Belt 1 x Calf Belt 1 x Ankle Belt 1 x Knee Pad