Metal Construction Set from Toysbox. This is a metal toy with re-usable metal parts over and over again. Gives the child the ability of Hand and Eye Co-ordination, Thinking Skills, Logic skill, Problem solving and Engineering. Leave no stone unturned in giving your child an all-round multifaceted glimpse of games. They're sure to develop a fondness for attempting construction sets as a great way of giving their minds some exercise and keeping them young. This metal construction mechanix sets surely going to be a thrilling experience for your kid. Ignite the spark of Engineering with MEC-O-TEC. How to play: 1. Step by Step fix the spare parts with help of bolts and nuts as per given in the manual guide given inside the box. 2. Assemble accordingly the whole process to make your own models.