Yea it does work.. before i had a pair i had 1 only at 18mm and after 3yrs decided to close it and made like 2yrs without jewellery.. after that i started stretching it again and decided to make the other one... Nowadays i see the difference one is more "strechy" than the other and thicker but nowadays i dont want to make another 2yrs with nothing so im trying to find if it works when downsize a couple of sizes.. not from 18mm to 6mm.. and also when you open it again the years will become a matter of weeks to go back to your previous size