21GA hardware staple: 1. color: yellow, golden 2. material: galanized, hard steel or stainless 3. usage: doors, windows Xinli is a elastic webbing, staple ... details about 21 GA hardware staple is as follow:1. usage: doors, windows, wooden furniture.2. color: yellow, golden, and so on.3. material ... , 4000pcs/box, 20 box/ctn 21GA sofa staple,factory supply,with high quality and competitive price