Lani Ang 20 Sets Magnetic Bag Button Snaps Clasps 18mm-Great for Purses Bags Clothes Sewing Craft No Tools Required (Silvery White) Set of 20 complete buttons. Each set is composed of two snaps and two washers. Once the two snaps are in place, they will snap together. Simple to attach--just insert prongs through fabric/material&fold-over,backing pieces included. Durable all steel with bright silver nickel finish; high quality,reliable magnet.