Breakthrough Clean Technologies, Penny Pincher, Shotgun Cleaning Kit, Fits 12 Gauge/20 Gauge/410 Bore California Prop 65 WARNING. These products contain a chemical known to the state of California to cause cancer, birth defects and other reproductive harm. Lead: Cas-No. 7439-92-1 Stainless steel rod, T-handle, patch holders, various bore brushes : All-In-One (CLP) cleaner and lubricant Designed to clean: .12 Gauge / 20 Gauge / 410 Bore Product Description These economical gun cleaning kits include a stainless steel rod, T-handle, patch holders, various bore brushes and our All-In-One (CLP) cleaner and lubricant.