The Discovery Mindblown Model Engine Building Kit is a 4 Cylinder Combustion kit that allows kids aged 8-11 years to learn about automotive engineering in a fun and interactive way. Made of plastic and requiring 2 AA batteries, this unassembled kit from the DISCOVERY franchise includes all the necessary components to assemble a working model car engine. With a transportation theme and manufactured in 2019 by MerchSource, this kit is designed for intermediate skill levels and is sure to provide hours of educational entertainment for young builders.