These wider White Spring Steel Bones are used to support corsets, evening wear bodices and bridal dresses. They also work well for the well boned Elizabethan bodice or Renaissance Faire bodice. You need fewer bones when using this wider style metal stay. This is also a great bone for the Rubanesque woman, as it not only offers good support, the casings are more in proportion to a scaled up bodice. 1/2" wide x .014 cm thick, choose your length from the drop-down menu. Wholesale Corset Bones - 12.5mm (1/2") White Spring Steel Corset Bones. #28-8312. Priced per quarter gross (36 bones). To view a side-by-side comparison of all our cut length bones, please click the prompt that appears below the photo.