The number puzzle made of quality natural wood and coated with non-toxic paint, approved ASTM and CPSIA test. Wooden board is very smooth, lightweight and sturdy, kids can safely play with these wooden puzzles for years on end. Your little one is going to learn all about letters when you show them this fun alphabet puzzle that’s designed just for their little hands, stand-alone letters let kids practice their ABC as well as form simple words, and ask your child to identify it, then place it in its correct spot.