The snap setter kits are a perfect all-in-one kit; each set contains one quality zinc-plated solid steel setter, anvil, and 20 four-piece sets of light-duty line 20 nickel snaps. The 20L snaps are better suited for small cases, garments and lightweight leathers up to 4-5 ounces 5/8-inch snap diameter. WARNING: CHOKING HAZARD: Small parts. Not for children under 3 years. Imported.