My First Puzzle set series are great ?starter? puzzles and will help little hands develop fine motor skills. 4 In A Box Dino introduces fascinating dinosaurs as the puzzles progress from 2 pieces to 4 pieces, to 6 pieces to 8 pieces, giving your child the opportunity to grow and develop with the set. The 8-piece puzzle brings the characters from the other three puzzles together in one animated scene with lots to talk about. My First Puzzle sets are a great way to help your toddler build tactile and problem solving skills. Each puzzle measures approximately 12.5? x 8.5?. Ages 2+ years.