Twisted Labs offers a 99.5% pure, clean and unadulterated N-BUTANE directly from the source! We combined that with a non-corrosive, poly lined can to bring you a product with no standing competition around! Our mission is simple, we want to offer the best butane at a honest and fair price! So come join the lab team and release your inner MADD.You can buy with confidence as twisted labs offer the best value for your dollar. Please check our certificate of analysis COA. We have used SGS which is the largest testing facility in the world to ensure our products have the highest purity bar none.