120 SETS, 6 COLORS - gold, silver, bronze, gunmetal, matte black and jet black. 120 sets in total, 20 sets snap fasteners each color. Each set are made of cap, socket, close post and studOUR SIZE - The diameter of the cap is about 12.5 mm/0.49 inch. The thickness is 6mm. NOTE: these snap fasteners are suitable for light to medium fabric, not suitable for thick fabricDURABLE AND LONG-LASTING - All these snap fasteners are made of copper zinc alloy with nickle-free plating craft, they remains like new even after long time use. But please don't use too much force when strike the fasteners in case of deformation