Cable Retainer (25mm and 30mm)

25mm (~1") and 30mm square cable retainers. For scale, the image of the white one with two sets of wrapped cables in it is a 30mm version and that has two PC audio cables (the kind with TRS connectors), an HDMI cable, a standard PC power cable, and an 18/2 cord that powers my speakers.

The slot in the top allows cables to be added or removed at will instead of needing to thread them through one guide/retainer at a time.

The hole in the front allows a screw to be driven in without needing