Follow the included instructions to build a stunt plane then take it apart and build a propeller plane with the same parts. Meccano 2-in-1 Model are for ages 8+. No batteries required. Manufacturered by Meccano. Includes: 78 Parts 2 Real Tools 1 Instruction Guide The 2-in-1 Model Stunt Plane Set comes with 78 durable metal and plastic parts plus real tools and instructions.