The SHOTGUN CLEANING ROD GUIDE by BROWNELLS for 28 gauge shotguns is made from machined Delrin® to ensure correct alignment and prevent rod contact with barrel walls.
It is safe for use with cleaning solvents or lubricants and is designed to not scratch or damage the chamber.
The product is 2" (5.1cm) long, which is suitable for the specific cartridge size, and there are models available for other gauges including 12, 20, and .410 bore.