How to repair the lock bead falling off the umbrella pole?

The locking bead on the umbrella pole fell off. Repair the lock bead again, prepare a pen tube without water, and cut off the end without pen tip by about 2 cm with a knife. The specific operation steps are as follows:

1, prepare a pen holder without water.

2. Use a knife to cut off the end without a pen tip by about 2 cm.

3. Melt one end of the cut pen tube with a lighter.

One end of this pen tube is blocked.

5. Gently test the other end of the pen tube with a lighter to make the pen tube soft.

6. Cut the soft pen tube with scissors. Don't cut it, just let the pen tube sink.

7. Put the pen tube with handle on the umbrella post.

8. Sew the umbrella cloth on the pen tube with needle and thread.

9. Sew back and forth several times to prevent the umbrella cloth from falling off.

10, repaired.