KAMsnaps White & Black 150 Sets Organizer Storage Case T5 Size 20 Plastic Button KAM Snaps Fasteners No-Sew 150 complete sets in total: 100 white + 50 black. 1 set = 2 caps, 1 socket, 1 stud. Size 20 standard length glossy snaps. Diameter approx 1/2". Works best with KAM pliers or table press but can be installed with other tools able to apply plastic snaps. Snaps are commonly used on clothing, cloth baby diapers, bibs, towels, and other embroidery, craft, sewing and household projects. NOT intended for thick/dense material like double layers of marine vinyl (which require size 20 EXTRA LONG snaps). Unlike most other snaps, KAM snaps are made of polyacetal resin, a type of plastic that is stronger and more durable than other types of plastic. CPSIA compliant.