Wonderful Women's Beauty Classic Lace Waist Cincher 3 Hooks 5001 Polyester Imported Closure with threeply hook and eye in front, 9 PCS Spiral steel bones, black lace in front. Spiral steel boned firm compression waist cincher. Spiral steel bone, which is the fins material inside the corset. It's flexible and durable, as soft as plastic bones, can bend easily but recover quickly to origin. Shipping by ePacket, usually 10-18 business days. Hook and eye closures have 3 rows to keep tight fit as you lose inches; Standard or Long band height for longer torsos or fuller coverage Use current waist size to match correct cincher size. CHECK SECOND PRODUCT IMAGE FOR SIZING CHART. If it's tight it's because it works!