Nifeliz Turbofan Engine Building Set, Engineering Challenge Model for Adult Collectors, Physical Science Project and Display Piece (2,216 PCS, NF10317)

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About This 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. Overview Brand : Nifeliz Age Range (Description) : Teens, Adults Color : Gray, Black Theme : Nifeliz Engines Item dimensions L x W x H : 19.69 x 7.76 x 5.24 inches Show more