Features: 1.These button fasteners are made of eco-friendly brass, rust resistant 2.Setting tools are made of electroplated iron, high hardness and comfortable grip 3.Thickened button fasteners are washable, harmless and sturdy 4.Buttons are well packed in a plastic box for convenient carry and storage 5.Fine workmanship, conveniently and easily used at home or in clothing shopspecification: These button fasteners are made of eco-friendly brass, rust resistant.Setting tools are made of electroplated iron, high hardness and comfortable grip. Thickened button fasteners are washable, harmless and sturdy. Buttons are well packed in a plastic box for convenient carry and storage. Fine workmanship, conveniently and easily used at home or in clothing shop. s: Type: 633#12MM, 655#10MM (Optional) Button Surface Diameter: 12mm(633#), 10mm(655#) Material: Brass, electroplated iron Button Color: Bronze, silver, gold, black (10sets per color) Box Size: 17.3*9.8*2cm/6.8*3.8*0.8in Weight: 186g, 175g(approx.) Package Includes: 40 sets x Buttons 1 set x Setting Tools 1 x Hole Punch