Ugears Stem Lab Tachometer ★Mechanical 3D Puzzle Kit Model Toys Gift Present Birthday Xmas Christmas Kids Adults New Arrival 5D wooden picture motorbike model

5D wooden picture motorbike model has movable elements and comes in its own frame

Lever system

Model Size: 4

Muscle cars have squared off in many an illegal street race

Ugears Stem Lab Tachometer ★Mechanical 3D Puzzle Kit Model Toys Gift Present Birthday Xmas Christmas Kids Adults New Arrival 5D wooden picture motorbike modelLearn how the Tachometer works A tachometer is a device designed to measure the rotational speed of various parts in engines and other mechanisms. It calculates revolutions per minute (RPM). The tachometer also measures and monitors load limits, in order to decrease or increase RPM so that the engine or mechanism runs within its optimal parameters. Specifications: Model Size: 9. 4 x 4. 1 x 4. 8 inPackage size: 8. 1 x 7. 4 x 2. 5 inNumber of parts: