This fun book is a perfect way for young children to improve their basic number recognition and counting skills. Using the special pen provided, young children can trace over the numbers, wipe off and repeat. Little ones need lots of practice controlling a pen as they start writing and this book allows endless opportunities for that. Friendly monsters take children through numbers one to ten, one step at a time. Illustrations: Full colour throughout WARNING! Not suitable for children under 36 months because of small parts. Choking hazard. Ink from pen may not be washable.