Pneumatic staple K series Material: steel Thickness: 1.0 Dia: 1.19 Outside crown: 4.57 Length: 9.5 mm, 12.7 mm , 15.9 mm , 19 mm, 22,2 mm, 25.4 mm, 31.8 mm, 38.1 mm, 41.3 mm Color: Silver, black Application: Carpender roofer, building components, joiner, sofa, industry, packaging, furniture, etc.