Knox intelligent dumbbell handle does not move.

What you want to ask is what should I do if the handle of Nuosmart dumbbell does not move?

1. Lubricate the threaded port (diesel oil and kerosene) first.

2. Wait for a period of time, and then hit the silk cover with a hammer (let it have a certain gap).

3. Repair the thread with a hacksaw, and then tighten it with a screwdriver.