my first puzzle set series are great “starter” puzzles and will help little hands develop their fine motor skills. 4 in a box dinosaur box introduces your child to 3 very popular dinosaurs. the puzzles progress from 2 pieces to 4 pieces to 6 pieces to 8 pieces, giving your child the opportunity to grow with the set as they grow and develop. the 8 piece puzzle brings the characters from the other three puzzles together in one animated scene with lots to discuss and talk about. my first puzzle sets are a great way to help your toddler begin building their tactile and problem-solving skills. each puzzle measures approximately 12.5” x 8.5”. ages 2+ years.