Extends elfa runners, so that it can be installed 45mm wider cabinet than originally designed to.

Example you can install these on 600mm wide cabinet which is not supported out of the box.

One piece is 22.5mm tall and you need to print 4 pieces.

Print 25% infill with 3 perimeters, other settings should not matter that much.

Mountin holes are for 3mm wood screws and the middle one is 4.5mm (standard cabinet screw).