This is a Talon size 10 open-end zipper. It is new and unused. The slider/chain color is antique nickel (a subdued, dark silver), often used in military items. Brand: TALON No. 10 Open-end zipper, 1 piece Size: 76cm (30 inches, measured from the top stop to the bottom stop/end when the zipper is closed). The length of the zipper can be shortened using the top stop. Tape Color: Navy Tape Width: 4cm Chain Width: Approximately 9mm Zipper Color (Teeth): Antique Silver Applications: Jackets, coats, etc. Multiple purchases are possible for those who make clothes or for businesses.