Pragmatic and simple, Hofmann's design is for a wire manager to be fastened under a desk/work surface to keep cables up and out of the way. WM22 is designed to work in a horizontal plane rather than a vertical one. Essentially, he took our WM2 and extended a flange top and bottom for fastening!
Specifications
3 9/16" high by 1 7/32" deep; 1 3/4" high trough; 1 to 6 ft long.