Features: 15 Sets contains: 15 Sets button, 2pcs installing and punching tool, 1pieces srtter base. 30 Sets contains: 30 Sets button, 3 installing and punching tool, 1 stter base. Each button fasteners set includes male and female caps, long studs and socket. Female Caps diameter: 15mm/0.59in. Female Socket diameter: 15mm/0.59in. Studs diameter: 10mm/0.39in. Male Caps diameter: 10mm/0.39in. Multifunctional sewing button fasteners and installing tool, sufficient quantity to meet your crafting needs in clothes, leather bag, hat making, repairing and decoration. Widely used for leather craft, handbags, backpacks, shoes, hat, making clothes, leather belt, bag, jeans, other sewing project. Specifications: Type: 201, 831 Component: Metal Color: Bronze; Black Bronze; Silver Case Size 1: Approximately. 14x10x5.0cm/5.51x3.94x1.97in Case Size 2: Approximately. 10x18x2.50cm/3.94x7.08x0.98 Weight: Approximately. 453g; 209g Package Includes: Package Option: Package 1: 15Sets Package 2: 30Sets note: 1.Please allow 0-1cm error due to manual measurement. Be sure you donot mind before bid. 2.Due to difference between different monitors, the picture may not reflect the actual color