Review on Premium Black Zipper Pull Replacement Kit [4 Pieces, 1.5 x 0.43 x 0.17 Inches] – Fix Damaged Tags on Jackets, Coats, Luggage, and Suitcases. Large Locking Pull Tabs for Easy Repair - Detachable Repair Kit by Doris Tran

It was one of those days. I was just fastening my work boots when the YKK zipper came loose. I found them great for light or maybe medium loads like a jacket or backpack. That's what they will work for. In my case, when I closed a boot, the zipper lost its shape the first time I used it. I only noticed it when the zipper fell out of the seat of my pants shortly after walking. I examined it and found that it had flexed (opened) enough to make room. I got it working just fine, using pliers to compress the metal and close the gap. I hope this helps you decide.