01 Features: The new leg posture corrector adds a unique design,you can pressurize the air pump to increase the pressure on both sides of the leg to achieve custom traction and obtain a more obvious correction effect Scientific external pressure test, physical correction of your legs. 3 in 1 design, equipped with multiple safety belts at different leg positions, which can be wrapped around the legs 360, with a large contact area and uniform force, which can achieve a larger coverage of the leg correction and reduce the risk of falling. Specification: Material:PU leather,TPU air sac Color: Blue+Grey(As Picture Shown) Size: One Size, Suitable for Adults Notes: There could be some slight differences in the color tone of the pictures and the actual item. Please allow 1-2mm differs due to manual measurement, thanks. Package Included: 1pc x Straightening Correction Band Belt 1pc x Non-slip Knee Protection Pads Packed Safely in Retail Box. 02 Features: Air bag pressurization, physical traction, air bag pressurization on both sides, pressurization and physical traction on both sides of the leg, moderate strength. Long aluminum strips are built on both sides to fit the contour of the leg, and the strength is concentrated on both sides of the leg; Aluminum plate support, removable. Three-in-one comprehensive coverage - thigh band, knee band, calf band, widened and thickened to avoid falling off, large contact area, comprehensive coverage. Comfortable and breathable, scientific correction. Specification: Material:PU leather,TPU air sac Color: Black Notes: There could be some slight differences in the color tone of the pictures and the actual item. Please allow 1-2mm differs due to manual measurement, thanks. Package Included: 1pc x Straightening Correction Band Belt 1pc x Non-slip Knee Protection Pads 1pc x Manual No Retail Box.Packed Safely in Bubble Bag.