Things You'll Need:
- Knife
- Knife
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Step 1
Arrange the bag so that you have access to both sides of the zipper. For example, if you're lying in the bag, move the zipper to the top.
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Step 2
Cut with a knife any frayed threads that are caught in the zipper and pull them free. Gently test the zipper to see if it moves.
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Step 3
Pull any caught material away from the zipper at a right angle. In other words, pull it to the side, not up and down. Test the zipper again.
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Step 4
If necessary, pull firmly on the zipper to force it over the caught material. Holding the zipper-pull by the body rather than by the handle piece will provide more power.








