What to do if the zipper no longer closes?

If the zipper no longer closes, there are a few steps you can try:

1. Checking the zipper: Check if anything is caught between the zipper teeth, such as fabric or threads. Carefully remove any obstructions.

2. Check teeth: Check if the zipper teeth are bent or damaged. If you find any bent teeth, gently try to straighten them with pliers.

3. Adjusting the zipper slider: If the slide is loose or does not move properly, gently squeeze it (e.g. with pliers) to make it grip better. Be careful not to apply too much pressure to avoid damaging the slide.

4. Lubricate: Sometimes it helps to lightly lubricate the zipper. Use soap, candle wax, or a special zipper lubricant. Gently apply the lubricant to the teeth and move the slider up and down several times.

5. Replacing the carriage: If the carriage is heavily worn or damaged, it may need to be replaced. Replacement carriages are available at many haberdashery stores.

If these measures don't help, it may be necessary to replace the entire zipper. In this case, it's often advisable to seek professional help, especially with high-quality clothing or bags.