The Original Gas Flask was designed by motorcycle riders for motorcycle riders. Carry 1/4 gallon or the 1/2 gallon in your saddle bag or tool bag and get down the road instead of pushing. Gas Flask has an o-ring seal that seats tight and prevents leaks; D.O.T. approved for transportation of gasoline and is made of aircraft quality billet aluminium ( t-6061). Available in polished, brushed, brush-cross hatch, and powder coated.