Children develop hand-eye coordination through imaginative play with this Melissa & Doug Dinosaurs Chunky Puzzle. : Wooden construction. Melissa & Doug is proudly partnering with the American Academy of Pediatrics to foster early brain development and help children build important life skills through play. Helps families embrace the three principles of healthy play: prioritize hands-on play, enjoy screen-free time and interact and connect through play. : 12"H x 11"W x 1"D, Ages 2 years & up, Model no. 3747. Size: One Size. Color: Multi. Gender: unisex. Age Group: kids. Material: NONE.