Features 1.Manually inflated air pump can add more pressure on the leg sides, easy to control with self operation for custom traction enjoyment and more obvious correction effect. 2.Detachable aluminum strips enable solid construct and reliable support without easy deformation, durable for long time use. 3.Three-in-one/two-in-one design with multi belts in different lengths can be used for different leg positions, suitable for O or X leg correction. 4.High elastic stretchy fabric with adhesive fastener strap allows custom tightness adjustment to perfect fit your legs, skin-friendly nylon material can avoid hurting your skin, safe and comfortable for all season repeatedly long time use. Specifications Color: Black Type: For Adults/For Kids(Optional) Size Chart: Type Calf Knee Thigh Length For Adults 63cm/24.8in 72cm/28.3in 80cm/31.5in 41cm/16.1in For Kids 55cm/21.6in -- 65cm/25.5in 32cm/12.5in Package Included 1* Straightening Correction Band Belt 1* Non-slip Knee Protection Pad 1* User Manual _x000D_