This is the "Back Support Belt Corset Diet Pulley Type for Kyphosis Correction, Lower Back Pain, Black, XL Size." It fastens in the front with Velcro, and you simply pull the string from the back. It reduces stress on the lower back and supports lower back pain. It's also ideal for pelvic correction, posture correction, and slimming the abdominal area. [Product Contents] Color: Black Size: Approximately 108cm long, 21.5cm wide Weight: Approximately 214g *The length can be adjusted by fastening the Velcro and pulling the string, so please use the size that fits you best. We also have other sizes available, so please check them. *The last two images are actual product images, so please refer to them along with the reference images. *Please be aware that this is an imported product, and order with the understanding of the quality.