With our different metal kits children playfully get an insight into the world of technology. The professional models are to show the diversity of modeling. Our RC models, wind turbines, solar models and multi-play boxes with up to 20 models there is always varied. The kits of the Silver Line, Junior Series and Professional Series can be variably combined and supplemented. These kits are compatible with eitech© metal construction sets. The Micro series is the smallest metal construction in the world and exclusive at Tronico.