cable-clip for wall insulation (Kabelhalter)

This is a cable-holder which is intended to be sticked / supported by a wall insulation.
My firewall, my WAN-bridge and other networking-stuff is on the attic below the roof.
Also the cable where "air-routed", so basically just hanging around.

I designed the clips to tidy up the cables and stick them to the styrofoam-insulation of the staircase.
You can see one of the clips lying on the network-switch, while all the others hold the cables in-place right at the wall.