1PC Mini Steam Engine Tractor Model Toy DIY Micro Power Generator Engine Motor The newly designed steam engine model, tractor head, full length 90mm, height 55mm, full width 65mm. The double flywheel and one crankshaft make the operation more stable and the resonance is smaller. Mechanical commutation, which can be used for forward and reverse rotation, and can be driven by compressed air or steam. The item "1PC Mini Steam Engine Tractor Model Toy DIY Micro Power Generator Engine Motor" is in sale since Sunday, December 23, 2018.This item is in the category "Toys & Hobbies\Models & Kits\Tools, Supplies & Engines". The seller is "mus611433" and is located in suzhou. This item can be shipped worldwide.