2. Next, prepare a spare hot melt glue gun.
3. Then apply a proper amount of hot melt adhesive on the inner side of the ring through hot melt glue gun.
4. Next, press the hot melt adhesive by hand before it solidifies to make it better fit the ring.
Finally, put the ring on your hand after the hot melt adhesive solidifies. At this time, you will find that the size of the ring has become appropriate.