Liftable Biplane: Movable airplanes on rotating tower, real and interesting.
Gear-Transmission: Gear drive mechanical model, experience the magic of mechanics.
Wind Up Musical Mechanism Movement: Manually to rotate the knob, then release, the music will be playing.
No glue needed: Consists of 255 pre-cut small wooden pieces, needs to be assembled by yourself. No glue needed at all.
Clear Instruction: Step-by-step, easy to follow assembly guide is included, makes the whole assembly process much easier and enjoyable