Ugears Sky Watcher Tourbillon Table Clock ★Mechanical 3D Puzzle Kit Model Toys Gift Present Birthday Xmas Christmas Kids Adults 10% or the standalone Tanker or

or the standalone Tanker or Fire Truck

Item Material: MDF + PU Leather/ Aluminum Alloy

Model size: 11

Watch your ingenious machine raise marbles up the stairs before sending them down a multi-tiered ramp

Ugears Sky Watcher Tourbillon Table Clock ★Mechanical 3D Puzzle Kit Model Toys Gift Present Birthday Xmas Christmas Kids Adults 10% or the standalone Tanker orModel size: 12*7. 1*6. 5 in (30. 5*18*16. 5 cm) Package size: 14. 9*6. 7*1. 8 in (37. 8*17*4. 5 cm) Number of components: 338 Estimated time for assembly: 15 hours The Clockwork Universe theory favored by 17th C deists held that the Earth and the heavens, and all their motions, were like a giant clock, with God as the Clockmaker. Newton's three laws of motion and the principle of universal gravitation were thought to be sufficient to explain phenomena