The broken zipper
A pencil, soap, or candle (for lubrication)
Optional: a pair of pliers if the zipper pull is loose
Step-by-Step Fix
Check the Problem: Most broken zippers are stuck because the teeth aren’t aligned or the slider is loose.
Lubricate the Zipper: Rub a graphite pencil tip, soap, or candle along the zipper teeth. This makes the zipper slide smoothly again.