This is a fabulous pack. 4 different dinosaur jigsaw puzzles per pack. Pterosaurs, T-Rex, Brachiosaurus and Mosasaurus. Puzzles are in large pieces, so it is easy to hold and put together. One unique factor of this puzzle is that they glow in the dark showing just the skeleton. Puzzles helps to improve fine motor skills and problem-solving skills.  
Suitable 3+ years