This is a very similar model of Titan called "Ion" from Titanfall 2 videogame.
As you can see from the images, this mecha, is a high articulated model, almost entirely made of 3D printed pieces of a total of more than 50 pieces in just six .STL files that you will build by yourself.
You will also find and need complete instructions to assemble this little titan.
I also did titan "Tone" and "BT7274". Go to take a look on them!
For every technical question you have to read the manual to undestand how to print and build the titan