What kind of vehicles do monsters drive? Monster trucks! Learning can be a monstrous feat and My First Puzzle Sets series are the perfect starter puzzles to help little ones develop their fine motor skills. The puzzle sets are progressive puzzles that advance from 2 pieces to 4 pieces to 6 pieces and to 8 pieces. This set features 4 puzzles depicting various monsters driving their favorite vehicles. The 8-piece puzzle brings the characters from the other 3 puzzles together into one, fun animated scene. The puzzles are designed to grow with your child as they continue their early development. My First Puzzle Sets are the perfect way to help your toddler develop essential fine motor skills.