Using real metal tools and over 250 anodized metal parts, kids get to piece together with nuts and bolts an amazingly detailed rocket ship complete with a moving gantry. Build a space telescope to scan for new planets to explore. Build a ground-based satellite dish to listen for any alien transmissions and then figure out the best way to respond with the five different rocket models. And there are still five more models left to build! (Including a windmill for your new home on Mars. This 15 Model Erector set can build 15 space-themed models. Parts bolt together using real anodized metal parts and tools. Includes 260 parts and 2 real tools Detailed building instructions included. Only one model can be built at a time.