Ugears Stem Lab Variator ★Mechanical 3D Puzzle Kit Model Toys Gift Present Birthday Xmas Christmas Kids Adults laundry No glue or other tools

No glue or other tools are required to assemble this attractive DIY wooden model—everything you need comes right in the box

suitable for hanging on a wall or placing on a desk or shelf

Our team of designers created the Marble Run Spiral Hoist and our three other marble runs (Chain Hoist

Tram Car is equipped with an overhead pantograph for stepping it up to “drive” mode and a knob for opening and closing doors

The Knight BusTM roars off thanks to a system of gears that transfer energy from the spring to the wheels

Ugears Stem Lab Variator ★Mechanical 3D Puzzle Kit Model Toys Gift Present Birthday Xmas Christmas Kids Adults laundry No glue or other toolsModel size: 6. 6*5*4. 2 in (16. 8*12. 8*10. 6 cm) Package size: 8. 1*7. 4*2. 5 in (20. 5*18. 8*6. 3 cm) Number of components: 104 Estimated time of assembly: 4 hours Assemble it and discover how Variator works. The model kit comes with a QR code to the study guide about the mechanism, the principal of its working, the main characteristics, formulas. It also includes interesting assignments. Dive into augmented reality and look at how the Variator