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Length

Classification	Measure	The length of the zipper
Close-end zipper	From the tip of slider to the end of the bottom-stop.
Open-end zipper	From the tip of slider to the end of the box.
Two way open-end zipper	From the tip of the slider to the bottom end of tape.
O-type zipper	From the end of one bottom stop to the end of another bottom stop.
X-type zipper	From the tip of one slider to the tip of another slider.

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