The NUK Training Toothbrush Set is ideal for introducing your child to teeth cleaning step-by-step. The Brush-and-Bite Teething Trainer gently massages specific areas of the gums and the roof of the mouth and helps to relieve the pressure from teething. The soft, bite-resistant rubber tips of the Brushing Trainer gently clean the first visible, little teeth. Your child learns the right movement for cleaning teeth at the same time.