KAMsnaps 200 Sets Lead-Tested White & Black KAM Snaps Size 20 (1/2 Inch) Plastic Snaps Fastener Punch No-Sew Poppers Button Rivet Stud for Bibs Diapers Crafts 100 sets white and 100 sets black KAM snaps. Size 20 = 1/2" cap diameter. 1 set = 2 caps, 1 socket/female, 1 stud/male. Professional grade, the same quality used in commercial applications, including cloth baby diapers.Complies with lead and phthalate content as regulated by CPSC CPSIA in children's products. A rust-free alternative to metal snaps and a no-sew alternative to regular sew-on buttons. Snaps are commonly used on clothing, cloth baby diapers, bibs, towels, and other embroidery, craft, sewing and household projects. Requires KAM pliers or KAM press to install (sold separately--search item B015XDZ666 for compatible pliers).