Callfire@new Bore Snake Gun Cleaning .50 Cal .54 Caliber Boresnake Shotgun Rifle Cleaner Net weight: 30g Multiple short brushes embedded in the floss pass easily through , the shortest action or port ; Initial floss area (inside the barrel) removes loose grit and debris prior to the scrubbing action of the brush ; Main floss, with 160 times more floss than a patch, super cleans the bore ; Brass weighted drop-through cord slips easily down barrel; No assembly required ;