The light up colours are fun for our toddler, the size is good for his small mouth. Love that its rechargeable and the heads can be replaced but the heads twist off a little too easily, my 2 year old can take them off effortlessly with his hands or mouth during his turn of brushing his teeth. Also if he clamps down while I'm brushing sometimes it will twist off too, its only slightly annoying but overall not a bad product but does have the easy twist as a negative for us.