GRANDCOW Women Waist Trainer Belt Body Shaper Belt Double-adjustment velcro adjustment for sizing accuracy. 3 reinforced acrylic bones encased in heavy canvas. Its double compression waist training technology allows you to achieve that craved hour glass shape in seconds. Material: high quality Nylon and Rubber, the belt's elasticity and flexibility are very good. and wear-resistant. you can use a long time. Dimensions: X-Large length100cm / 40", weight: 24cm / 10", fit for 2.6-3.3 ft waist.