No.3 brass zipper pin lock close end No.3 brass zipper spring lock(4.5YG) close end No.4 brass zipper spring lock(4YG) close end No.4 brass zipper auto lock close end No.5,No.8,No.10 brass zipper auto lock close end No.5,No.8,No.10 brass zipper auto lock open end No.5,No.8,No.10 anti brass zipper auto lock open end No.5,No.8,No.10 anti brass zipper auto lock close end No.5,No.8,No.10 anti nickel zipper auto lock open end No.5,No.8,No.10 anti nickel zipper auto lock close end No.5,No.8,No.10 brass zipper with cotton tape auto lock close end No.5,No.8,No.10 brass zipper with cotton tape auto lock open end No.5,No.8,No.10 anti brass zipper with cotton tape auto lock open end No.5,No.8,No.10 anti brass zipper with cotton tape auto lock close end No.5,No.8,No.10 anti nickel zipper with cotton tape auto lock open end No.5,No.8,No.10 anti nickel zipper with cotton tape auto lock close end No.5,No.8,No.10 brass zipper long chain No.5,No.8,No.10 anti brass zipper long chain No.5,No.8,No.10 anti nickel zipper long chain No.5,No.8,No.10 slider for brass zipper No.5,No.8,No.10 slider for anti brass zipper No.5,No.8,No.10 slider for anti nickel zipper BRASS Very strong and durable material typically made from 87% copper and 13% zinc. Using 100% brass would render the zipper chain too soft and not usable for many heavy-duty type applications. ANTIQUE BRASS Same base material as brass but with a special coating that gives the brass a worn appearance. BLACK OXIDIZED BRASS Brass material with a special treatment that leaves the brass teeth with a dull black matte finish. Perfect material choice where durability is required but the shinny brass finish is not desired.