Ugears Pneumatic Engine ★Mechanical 3D Puzzle Kit Model Toys Gift Present Birthday Xmas Christmas Kids Adults clock then play it by turning

then play it by turning the knob

your can unblock it pushing the lever in position 1 (Up) and set both wheels in motion by rotation of the drive gear or the wheel

making it one of the most exciting 3d wooden puzzles for adults ships

It can be a wonderful present to a friend

Ugears Pneumatic Engine ★Mechanical 3D Puzzle Kit Model Toys Gift Present Birthday Xmas Christmas Kids Adults clock then play it by turningModel Size ( Length x Width x Height ) 162 X 78 X 100mm Package Size ( Length x Width x Height ) 37 x 14 x 3cm Package Weight 200g Number of Parts 81 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