My son loves anything to do with dinosaurs and he also loves using tools to fix and screw things and tbisbtoy combines the two together. The toy itself is well constructed and there is a lot ofnpices roblut together with all tools needed. My son couldn't wait to open this and once he did there was no stopping him he was using the drill to screw all the bolts together to build the dinosaurs and when he completed them he was so happy with himself. Thisbrot helps children develop there learning skills and I would highly recommend this.