Skill - Clamp the top of the slider with one pair of needle nose vice grips and the bottom of the slider with the other pair of vice grips, making sure no fabric is caught.

Use both a twisting motion and a rocking motion to loosen the diamond until it breaks.

Steam any fabric that was caught to help prevent future snagging.

Discard the broken slider responsibly.

Attach a new slider:

Coil Zipper Slider Replacement

Plastic Tooth Zipper Slider Replacement