This is a phone holder for iPhone charger.

Construction:

The power supply bracket must be glued to the top of the clamp.

I also recommend gluing the screw, which is printed in 2 parts, together and then gluing the knob to the screw.

The rest is very easy to assemble.

Conclusion:

I came up with the idea because the other power supply holders don't look very secure and the smartphone could fall down, so this clamp gives you an extra grip.