Product description Material: metal Size: 12.5 mm, 14 mm, 17 mm Color: 30 numbers silver white + 30 numbers gun color Quantity: 60 pieces Package content : 60 * metal collar hooks : There are large, medium, small 3 different sizes; The total length of small hook and eye is 12.5mm, medium hook and eye length is 14mm, large hook and eye length is 17mm 3.Color: Silver white and gun color(each color has 3 different sizes); Material: Hook and eye are made of high quality stainless steel, strong and sturdy 4.Easy to Use: Hook and eye sets are easy-to-use and effective fasteners for any sewing project; The 2 pieces could be buckled side by side 5.Applications: Hook and eye closure can be applied on bras, bustiers, corsets and other fine lingerie, attaching to a skirt, dress or pants