Ugears Dynamometer ★Mechanical 3D Puzzle Kit Model Toys Gift Present Birthday Xmas Christmas Kids Adults 2.5D Puzzles The escapement at the end

The escapement at the end of each set can send the marbles back to the original hoist

Hot rods are personal automotive visions brought to life

After that the model gracefully turns around and stops

Attach your drive to your keyring to keep it convenient and secure

The second mode with the feet in the unlocked position your Monowheel will roll ahead while the rubber-band motor is working

Ugears Dynamometer ★Mechanical 3D Puzzle Kit Model Toys Gift Present Birthday Xmas Christmas Kids Adults 2.5D Puzzles The escapement at the endModel Size ( Length x Width x Height ) 147 X 72 X 170mm Package Size ( Length x Width x Height ) 37 x 14 x 3cm Package Weight 350g Number of Parts 48 If you have trouble deciding what to do with your day then the Dynamometer is just the machine for you. Similar to our Pneumatic Engine, this model operates by turning air pressure into motion. The difference is that this model will give direction to your otherwise aimless day. Blow on the top gear to