This is a pair of wrench racks that I made to organise my toolbox.
There are two rack designs - one 8-piece holder and one 9-piece holder. They were designed to sit side-by-side, yet take up as little footprint size as possible - hence one of the racks is "reversed". The grooves holding the wrenches in the reversed rack have also been flipped, so that the wrenches all face the same direction when placed together (as shown in the picture).
The grooves that hold the wrenches are all different depths and widths because I made them specifically to fit the wrenches that I own, but they should be fine to fit most wrenches of similar size no problem.