GUANLANG 20 Sets Magnetic Button Clasp Snaps 18mm - Great for Sewing, Craft, Purses, Bags, Clothes, Leather Great for sewing, craft, clothing, bag, scrapbooking, and more Each set is composed of two snaps and two washers Simple to attach - just insert prongs through fabric/material & fold-over; backing pieces included package included: 20*Button Clasp Snaps Size: Approx 18mm