... are producing metal slider ,size 3#,5#,7#,8#,10#.and we have many different molds. different weight slider Metal slider ... information1, different sizes: #3, #5, #7,#8, #10 sliders for nylon zipper,derlin zipper, metal zipper,2, different colors: black, bule ... information pls connect with me. Metal slider for metal zipper and nylon zipper