Features: 1. Air pump: The manual air pump can increase the pressure on both sides of the legs, easy to self-control, personalized pulling fun, and the correction effect is more obvious. 2. Aluminum bar structure: The detachable aluminum bar has a strong structure, reliable support, not easy to deform, and durable. 3. Appearance design, multiple belts of different lengths can be used for different leg positions, suitable for O or X leg correction. 4. Adjustable: The fixed belt can be adjusted according to the needs of personalized tightness to perfectly fit your legs. 5. Fabric: Skin-friendly nylon material can prevent skin damage and make the whole body safe and comfortable. Description: This legging strap can be adjusted according to the tightness, firm, reliable support, suitable for leg shaping. Specifications: Material: nylon Color: black Type: adult, child (optional) Type Calf Knee Thigh Length Adults 63cm / 24.8in 72cm / 28.3in 80cm / 31.5in 41cm / 16.1in Child 55cm / 21.6in -- 65cm / 25.5in 32cm / 12.5in Package Included: 1 set * leggings strap Notes:1. Please allow 0-1 inch error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from real object.