An engineering system to introduce stem and bring out the creativity in your child. A step by step manual to enable your child to learn the basics of fitting and guide him through the process. Step by Step fix the spare parts with help of non toxic plastic bolts and nuts.To fit the bolts tightly, make use of spanner holding the nuts , given inside the box.Assemble accordingly the whole process of Mobitech- a combination of Cars & Planes run on the floor & fly in the sky.