Frog Lube Clamshell Pack System Kit, One Size, Green Hunting Gun Cleaning Kits Perfect for Grab and Go Non-Toxic, Non Flammable, Non Hazardous food-grade ingredients, safe; USDA approved as a Bio-Preferred Product Heavy specific gravity allows seasoning into metal, eats rust, dissolves darbon Pleasant Mint Scent Biodegradable, will not harm the environment