Learning numbers Royalty Free Vector Image VectorStock #10 Aluminum Continuous Zipper Chain Number Formation Classroom Posters and Activity Center Coloring Pages 10 oz Loopwheel Sweat Cream. #10 Aluminum continuous zipper chain is made of heavy weight metal and features teeth that measure approximately 10mm wide when zipped. Continuous zipper chain is available in three convenient options (availability may depend on color): Small Rolls: 5 yard or 15 yard rolls (each roll comes as one single continuous piece) Full Spool: 75 yard manufacturer spool perfect for storage! HOW TO ORDER Just pick your length, enter your quantity, and youre set! Under Length, choose exactly what you want: 5 yard roll 15 yard roll 75 yard spool Enter the quantity (how many of your chosen length you need). Zipper sliders sold separately. #10 sliders for metal zippers sold by Zipper Shipper are compatible with this zipper chain. Suitable for 1 way zippers only. You cannot make a 2 way zipper that opens from the middle from metal zipper chain. The sliders can only go in 1 direction. A 2 way zipper that opens from the middle can be constructed from nylon coil zipper chain or molded plastic zipper chain, available via the Zipper Chain By The Yard listings. Zipper chain can only be used for closed end zipper applications. Separating zippers (up to 30 ft) can be found via our Bottom Separating Zippers listings. Please note: continuous zipper chain is cut to your specs and is not returnable. Please refer to our return policy for more information.