Lyracces Brass Copper Hook and Eye Clasps Closure Fastener Sewing Buttons For Lingerie Bikini Bra strap Sweater Coat 100set (22mm 6/7In, Black) a very simple and secure method of fastening garments together consists of a metal hook, made of flattened wire bent to the required shape, and an eye (or "eyelet") of the same material into which the hook fits hook and eye played an important role in women's corsetry; used in rows, they distribute the stress involved in restrictive garments application on brassieres, bustiers, corsets and other fine lingerie,fastening on a skirt, dress or pants consisting of two tapes, one equipped with hooks and the other equipped with eyelets so that the two tapes could be "zipped" together side-by-side