Any Zipper material in any gauge may be ordered as Continuous Chain. This is endless yards of zipper material with no sliders or stops. Continuous chain is usually ordered by cut-and-sew operations that need zippers for cushions or upholstery work or any application that does not need an open end (jacket style) zipper. Sliders and stops are sold separate of continuous chain. Yardage on spools will vary depending on material selected and gauge.