From time-to-time, your drum ring might become damaged. If you do not have an additional ring, and the damage is only on one side, we can show you how to flip it over so you can use the inside of the ring.
Step 1: Using a plastic chisel, slip the chisel in-between the ring and the tumbler to pull it off.
Step 2: Twist the ring so that the damaged side if facing down.
Step 3: Start to roll the tumbler so that the ring fits to the tumbler.