Ring Easy is a great solution for fingers with knuckle problem, and these ring spacers fit most rings. Easy to use these ring size adjusters and the ring fitter will not come off whenever you take off the ring. It can reduce ring size 1- 1.5 size. Ring size adjuster is made of TPU, ring resizers are so comfortable that you even don't feel it's there. It is a great gift for your lover, family and friends.