Bore Tech BTCF17004 Rimfire Blend 4 Oz Bore Tech Rimfire Blend Bore Cleaner Is a Specialty, Cutting Edge Bore Cleaner That Is 100% Barrel Safe, Biodegradable And Easily outperforms The Competition Without Any hazards, toxicities Or odors. Rimfire Blend rapidly removes The Carbon, Lead And Bullet Wax Fouling produced By Rimfire Ammunition. Size: 4 Oz Protects: Against Rust Eco-Friendly: Ammonia Free, Non-Flammable