Used by the U.S. Navy Seals. Dewey Nylon Coated Cleaning Rods feature a ball-bearing handle for ultra-smooth, precision cleaning and offer one-piece nylon-coated spring steel construction. Will not peel or pick up abrasives, for trouble-free shooting. Used by the U.S. Navy Seals Feature a ball-bearing handle for ultra-smooth, precision cleaning One-piece nylon-coated spring steel construction Will not peel or pick up abrasives