Sturdy and Durable Mechanix Kit The Mechanix Plastic Planes 3 is a game built on the educational objectives of developing logical thinking, hand-eye coordination, creativity, reasoning and dexterity. It does not require the use of batteries or any other form of power source. Made of high-quality steel and plastic materials that are 100 percent safe, the different elements of these Mechanix plastic planes are engineered to be sturdy and durable. Small steel elements are also included for detailing and to bring in the element of reality in the plastic planes and models constructed by your little one. So, fascinate your child with endless possibilities in the creative world of Mechanix. Easy to Use and Wide Variety The Mechanix 180 piece plastic plane kit allows your kid to make 15 different models of planes with a total of 180 pieces. This gives your child the space and flexibility to create different designs and models while honing his or her creative skills. You also get a step-by-step manual that guides children in fitting the pieces together, thereby making this game of Mechanix plastic plane models easy to understand and play with. Furthermore, all elements of the game are finished for a smooth and nice feel, thus ensuring safety since there are no rough edges to injure the children.