The shotgun classic kit is ideal for your 12/20 gauge shotgun.The kit includes: 32" kleen-bore 3-piece aluminum rod (which accepts 10,12,16,20,28 410 accessories and 5/16-27 american standard threads); double end nylon bristle gun brush; 12/20 ga phosphor bronze bore brush; slotted shotgun patch holder; 2 oz breakfree cl silicone cloth; shotgun cotton cleaning patches all in a reusable carrying/storage case.Caliber Or Gauge: 12,20 GaugePieces: 1 KitBristle Type: NylonLength: 32"Includes: Rod, Brush, Holder, Mop, PatchesThread Pattern: #5/16-27Case Material: Polypropylene