1, the rubber band is tightened

2, choose the appropriate length of rubber band

3. After the rubber band and props are tied. Take care of the exposed head.

Pay attention to the protection of rubber bands when using them. Rubber bands are rubber products, which should be sealed and stored away from light to avoid high temperature. Normally, rubber bands do not come into contact with solvents such as gasoline. After all, rubber bands are consumables.