Mechanical Model - Pneumatic Engine

UGEARS models are a unique combination of wood and mechanics.  UGEARS feature easy-to-assemble wooden pieces and gears that actually move that will bring delight to novice and experienced modelers alike.  Made with laser-cut high quality plywood, there is no glue required to assemble these intricate masterpieces.  Detailed step-by-step color instructions are provided in 10 languages.  Be a part of the once great era of steam with just a breath of air. The Pneumatic Engine is a small but fully functional example of a steam engine, except it uses air pressure instead of steam to set it in motion. Use an ordinary inflated balloon and watch the pistons and gears chug along just like the locomotive engines of yesteryear. The model comes with a built-in air pressure gauge and two compartments for storage and spare parts. Pieces: 81Ages: 14+ (Adults) Finished model size: 6.4 in x 3 in x 3.9 in / 16.2 cm x 7.8 cm x 10 cmSelf-assembly.  No glue required!