The Shotgun Bore Snake scrubs and cleans the bore of your shotgun in a single step. The built in, bench-quality phosphor bronze brush and braided floss scrub, clean and oil the bore in just minutes. Apply a few drops of bore cleaner to the front of the cord and oil to the end. Drop cord into the bore and pull through five times. Calibers: .410, .28-ga, .20-ga, .16-ga, .12-ga, .10-ga The Shotgun Bore Snake is washable and reusable and the lightweight design folds neatly away in new "den" carrying case for easy storage.