... zip top & more information1, different sizes: #3, #5, #7,#8, #10 sliders for nylon zipper,derlin zipper, metal zipper,2, different colors: black, bule, green ... purple, yellow etc.3, various designs for the slider pullers4, painted, electro-plated, auto lock, semi-lock,pin lock, spring lock, ... / ODM available13, more information pls connect with me. Metal slider for metal zipper and nylon zipper