If you're worried about your frog getting hurt from biting down on the tongs then you might want to pick up some rubber coated ones. I decided to start using the rubber ones with my big female after she inhaled about 2 inches or so of steel . . . she was ok but it scared the you know what out of me. Now I have to fight to get the tongs out of her mouth but at least I know she's not going to impale herself on them.