Terablock 3 in 1 construction system allows you to build in 3 different modes and more. Build in robot mode and defend your city from destruction. Switch to aircraft mode and blast into space. Build in dino mode and explore prehistoric worlds. Combine any two terablock sets to create new mega models. Scan the qr code on the back of the box for detailed instructions. Collect all 6 terablock sets to build 42 model combinations in all!