Box with snap lid for RU0SMS version of qrm eliminator. BNC, Key, DC In and switch on the side Optimised for 0.24 Layer height, 0.45 Extrusion width, horisonatl expansion adjusted for my PETG material but depending on your personal printer setup further ajdustements may be needed. Back side holes adjusted for metal inserts, but usable without them. Aligning of the holes depends on how flush are potentiometers soldered to pcb, slight adjustments are possible. Potentiometer tab hole included on back side of front panel.