Erector Design Starter Helicopter 1 Model 2733 With the Erector Design Starter Kit, everyone can easily build an Erector vehicle Each kit comes with 60 to 90+ pieces and can be used to build one model. Extra parts will be left after building the model. Collect all 6 Design Starter Kits of this series! There are 6 models in this series (EACH SOLD SEPARATELY): Sand Rail, Tractor, Loader, Airplane, Helicopter, and Motorcycle For ages 8+