GARVIN KOB-50 junction box bushing.

part number K OBS a half inch insulating knockout bushing anytime a knockout is removed and low voltage cables need to be pulled through the opening it's very important to protect the cables from the sharp edges of the steel box you simply take the plastic KOB 50 and align it with the inside of the knockout hole at this point one finger simply snaps it into place and the locking tabs hold it down and allow low voltage cables to be run through the knockout opening with any fear of short circuits or destruction to the wire jacket for these and other great products be sure to visit us online at Garvin industries comm