The Dinosaur Bones Match and Measure set of 16 pieces by Yellow Door is a fun and educational toy suitable for children aged 3 and above. The white stone/resin mix pieces are designed to stimulate an interest in archaeology and science through the theme of dinosaur bones discovery. With a focus on matching and measuring, this puzzle helps children develop cognitive skills while having a great time. This complete set is perfect for young explorers looking to unleash their inner paleontologist.