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.
Helpful Hooks Waist Training Corset for Puerpera, Make you Slim and Beautiful.Covered boning in front and back for added support, smooth waistline,3 columns hook-and-eye closure classic design, allow you to adjust size as necessary.
This garment shapewear is your best choice for the ultimate hourglass shape. Solid built for heavy duty waist training and body shaping, waist cinching and back support,
Please refer to left picture for detailed information and allow a little inaccuracy due to hand measure