Steam Locomotive with Tender Mechanical Construction Kit by Ugears – Self-Propelled Modular Mechanical Model - 3D Wooden Puzzle for Self-Assembly Without Glue - Brainteaser for Kids, Teens and Adults

UGears Steam Train Locomotive with Tender | 3D Puzzle Train Mechanical Educational Wooden Puzzles | Wooden Train Puzzles STEM Learning DIY Kits for Adults | Classic Decorative Wooden Train Craft Set

UGEARS Retro Car UGR-T Classic Car Model Kit - Vintage Car 3D Puzzle Model Car Kit with Folding Roof and Functional 4 Cylinder Engine - Décor Car Assembly Set Mechanical 3D Wooden Puzzles for Adults

Ugears Heavy Boy Truck VM-03, Wooden Gear Puzzle, STEM DIY Kits for Adults | Hand-Crank Powered Puzzle Functional Vehicles with Working Pistons, Wheels, Shocks, Educational Kit Mechanical Gear Puzzle