THESE ARE STANDARD 55 GALLON STEEL DRUMS. THEY ARE MOLDED IN ONE PIECE IN RUST COLORED STYRENE. BOTH METAL LIDS AND WOOD FIRE LIDS ARE INCLUDED. PICTURE 2 SHOWS S PART 3507 ( Available on my website! ) WHICH CAN BE USED AS A 35 GALLON DRUM. 4 PCS & 8 LIDS