Features: 1 elastic stretchy Lycra material with adhesive fastener strap permits tradition tightness adjustment to preferrred suit your legs 2 and skin-friendly material can keep away from hurting your skin, safe and comfy for all season persistently long time use three packs belts in several lengths can be used for various leg positions for faster and more apparent correction effect, appropriate for O or X leg correction Specifications Material: Neoprene+Lycra Fabric Color: Black Size: M/L/XL(Optional) ( 3Pcs Each Girth) Calf Knee Thigh Recommend Weight M 33-38cm/12 35-40cm/13 40-47cm/15 12-25kg L 35-40cm/13 40-47cm/15 47-56cm/18 20-40kg XL 40-47cm/15 47-56cm/18 56-65cm/22 40-60kg Note: Please allow 1-3cm error due to handbook measurement and ensure you don't intellect earlier than purchase The shade of the actual item may slightly range from the images because of varied computer displays and display settings Thanks for your understanding! How To Use: 1 Place your toes opposed to the wall, sit well, increase your arms to the maximum, seize your ankles and bend your upper physique for three to five seconds, repeat 10 times 2 Lie on the ground with your hands going through up, your arms near to your back, and your back close to your chest 3 The ankle is stretched toward the top direction 4 Repeat step 2 and step 3 5 Slowly decrease your legs and legs based on motion four 6 In a peaceful state, amplify the whole physique to adjust the breath for 5 seconds and repeat the above actions 7 20 ~ half-hour exercise is suggested Package Included: 3* Straightening Correction Band Belt 1* Knee Protection Pad