Nifeliz Turbofan Building Set, Engines Series, NF10317

Every gear, shaft, and joint is built for motion—an engineered engine flow you can set in motion with your own hands. Rotate the crank to drive linked parts in different directions and speeds, achieving a rare dual-direction, single-axis effect. A semi-exposed design lets you watch the mechanics at work, with metallic painted parts adding an authentic, engineered look. A hands-on challenge, leading to an engine you can see and operate—every gear and motion built by you. A build that engages both mind and hands, making this engine a memorable gift for any mechanical enthusiast.