I3 Pro Hotbed leveler wheel

I tried several wheels to one-hand level my I3 Pro hotbed.
So I decided to make my one.
Small, easy and with direction arrow.
You can find here source files, everything don with Thinkercad, just modify as you like if you find it interesting.

Infill 90% and no support.

Note: files include not-merged build and final product.
You need to print just the last one 4x