I'll admit it... I'm a full grown adult who uses a Hello Kitty toothbrush...that I usually pick up at the dollar store. But I've been using it for several years now b/c it checks off all the boxes!❤ Perfect SIZE for getting the inside surfaces of ALL my teeth! ESPECIALLY the front teeth, where the curve is so tight, it's hard to get in there even with "compact" adult brushes!! And it's much easier to the very back if my mouth, too!❤ It's ADA approved! Beware! Not al kids' brushes are (dollar store or otherwise)! LOOK for the symbol!❤ SOFT bristles (kinder to my teeth and gums! Effective w/o doing harm!)❤ FUN! I admit I love adding a little kitschy fun to a boring task. And, need I add...SUCTION CUP!I expected the hello kitty ones to not have suction cups on the bottom but the Life of pets one showed on the picture to have suction cups on the bottom but mine did not come with them. Was kinda bummed about that.