The classic Tinkertoy has been made into a project to build a set of dinosaurs that can reach the span of 5 feet. Easy instructions will please your young dinosaur lovers. There are 106 pieces including rods, connectors, spools, washers, bearings, claws, body plates, and, of course, dinosaur heads. You can work and make favorite dinosaurs plus different projects such as a windmill. This is a set that can continue to please and will be fun to work with over a long period of time.