Ugears Stem Lab Arithmetic Kit ★Mechanical 3D Puzzle Kit Model Toys Gift Present Birthday Xmas Christmas Kids Adults New Arrival and wooden mechanical marvels

and wooden mechanical marvels

Ugears goes romantically medieval and invites you to become a siegecraft expert with its new exciting model – Archballista and Tower

After passing zero continue to twist the handle to the right to the second code digits from 1 to 9

The Differential is a stylised educational model

Ugears Stem Lab Arithmetic Kit ★Mechanical 3D Puzzle Kit Model Toys Gift Present Birthday Xmas Christmas Kids Adults New Arrival and wooden mechanical marvelsAddiator size: 8. 5*4. 3*0. 91 in (21. 5*11*2. 3 cm) Multiplier size: 9. 8*10*1. 6 in (24. 8*25. 5*4 cm) Package size: 8. 07*7. 4*2. 48 in (20. 5*18. 8*6. 3 cm) Number of components: 117 Estimated time of assembly: 2. 5 hours Educational 3D puzzle Arithmetic kit by Ugears STEM Lab. Discover in AR Assemble the Arithmetic Kit and discover how the Mechanical Addiator and Mechanical Multiplier work. The model kit comes with a QR code to the study guide