【Gear Rotation Musical Box】Wind-up by turning the bottom spring,release and it rotating,the dream musical box will play the mellow melody of "Memory Form Cats". As the tune plays,Gears and five-colors magic balls will rotate slowly. 【No Glue Needed】Unique Mechanical 3D Puzzle,laser-cut ply wood,no tonxic,environmental friendly,smooth wooden board.All pieces are pre-cut,no glue needed.The interlocking mechanisms are pretty ingenious. 【Detailed English Instruction】Making…
