You should have approximately a ¼ size amount of play in between your toe and the toe rings. Your toe ring is too tight if you cannot spin the toe ring, and your toe ring is too loose if you can slide it on without using lubricant. Don't worry if your toe ring feels alternately loose and tight during the day. It's quite natural for your toes to swell slightly during the course of a day. You should, however, be concerned about gaining weight. Even a weight gain of 10 pounds can significantly alter your toe ring size.