Thesehemline snap fastenersalso called snap popper and press stud are a pair of interlocking discs commonly used in place of buttons to fasten clothing these are a great alternative to buttons and zips and can be used to fasten shirts bags and other garments with easethere are 20 sets included in this pack in an assortment of sizes between 6mm and 10mm they will be easy to sew into your designs and are made of rust proof brass ensuring long lasting qualitythe hemline range brings a huge