SmartGrips - Turn your smartphone into a game controller

These grips turn your smartphone into a gaming controller!

I have designed it specifically for the iPhone7 Plus, but it also works universally for small devices such as iPhone7, iPhone6 or smartphone from other manufacturers as they are not too big or too thick.
Prints it standing, front side down.

Smartphone sizes:
Maximum width: 78,3mm
Maximum thickness: 7,2mm to about 9mm

Have fun playing ;-D