Pack of 15 Completed Sets Silver Snaps Fasteners Press Studs Poppers For Leather Craft (15mm 201 (7.4mm Post)) Using for leather craft , clothing ,handbags, jacket etc. The Size measured the front part : 12.5mm, 15mm,17mm ; The 15mm with 6.2mm post can go through 2.5mm thickness leather The 15mm with 7.4mm post can go through 4mm thickness leather Color: Silver ; Material : Brass (Non-rusting) One pack 15 Completed Sets (1 set = cap+male+female+back)