[18 Pairs Bra Wires]: Package comes with 18 pairs metal bra wires, inner length: 8.27in(21cm), outer length: 8.82in(22.4cm), height: 2.87in(7.3cm), width: 0.07~0.09in(2~2.5mm). Not all manufacturers use the same wires size standard, so please measure the length of your wire and compare it with the size in the picture.[Bra Underwire]: The underwire helps to distribute weight evenly across the bra, designed to contour to your body for a perfect fit bras support ring, can be used as a replacement wire.[Bra Underwire Replacement]: These underwires are practical for use in most bras and lingerie. If your bra wires broken, don't need to throw away the whole bra, you can change the bra wires, save your money.[DIY Crafts]: The bra wires are suitable for personal and tailor shop, diy enthusiasts, can be used for bra, corset or evening gown stainless steel ring wire.[Protective Coating]: The edges of our bra wires are polished smooth and have a protective coating, so you don't have to worry about scratching the bra wires and hurting your skin. Safe and easy to use.