Engino 發現 STEM 遊樂園套裝：建造倫敦眼、旋轉木馬等 適合 9歲以上兒童 (可組裝8種模型)

The gear train on the London Eye build actually works — my son cranked the motor and watched the whole wheel turn without it jamming once. He's nine and needed a bit of help snapping the support beams together, but after that he was off on his own.

My 10-year-old spent a whole rainy Saturday on the motorized merry-go-round, then immediately tore it apart to try the booster ride. I like that the builds actually show how the gears turn the rides instead of just snapping together. Eight models means it'll keep him busy for a while.

My 9-year-old needed a bit of help sorting the gear trains at first, but the London Eye really spins smoothly once it's together. It's a solid way to see how the motors drive the motion.