Detailed Product Description Teeth material: brass and aluminumColors for metal zipper and slider designs could be selected depend on the customer's requirements.Sliders could be enameled and lasered.Size: 3#, 4#, 5#, 7#, 8#, 10# and so on.High quality, reasonable price, best service and quick delivery.Open-end, close-end, two-way types are available.