Build, power on, and explore the mechanics of a classic radial engine with the Ugears R-5 Aircraft Engine 3D wooden puzzle. Featuring authentic moving parts, a synchronized valvetrain, and a USB-C-powered propeller, this model offers a unique hands-on experience inspired by the golden age of aviation.

Ugears wooden 3D puzzles. New 3-in-1 Space Set: NASA Saturn V Rocket, Lunar Rover, and Space Shuttle Discovery. A fun, educational, and inspiring gift for space lovers of all ages.

Ugears wooden 3D puzzles. New 2-in-1 set: NASA Saturn V rocket and Lunar Rover – perfect for space exploration. No glue required. Great gift and exciting hobby.

New wooden mechanical 3D puzzle UGT-24 Endurance Racer by Ugears. A large car featuring a blue racing stripe and plastic windows drives 5-6 m thanks to a spring motor. Cool gift!

Number of components: 776 Level: Advanced Electronic components:  Yes Model size: 6.3 x 4.8 x 5.9 in (16.1 x 12.1 x 15 cm) Package size: 14.7 x 6.7 x 2 in (37.3 x 17 x 5 cm) Estimated time of assembly: 8 hours

Number of components: 500 Level: Advanced

Number of components: 550 Level: Advanced

Number of components: 319 Level: Medium

Wooden mechanical 3D puzzles by Ugears. Heavy Boy Set: Heavy Boy Truck VM-03 that moves without batteries, and Heavy Boy Truck Trailer VM-03. Assemble without glue. Perfect gift!

Number of components: 315 Estimated time of assembly: 6 hours Level: Medium

Model size: 10.3*3.5*5.5 in (26.2*9*14 cm) Package size: 14.7*6.7*1.4 in (37.3*17*3.5 cm) Number of components: 457 Estimated time of assembly: 8 hours Level: Advanced

Model size: 11.8*5.7*7.3 in (30*14.5*18.5 cm) Package size: 14.7*6.7*2 in (37.3*17*5 cm) Number of components: 562 Estimated time of assembly: 8 hours Level: Advanced