Durable seamless drums have . 180" nominal wall thickness. Rustproof and dent-proof, they're ideal for outside storage. Drums are stackable and easy to handle. closed-head drums are supplied with one 2" nps and one 3/4" nps bung. open-head drums are supplied with bolted steel locking ring and plain cover without fittings. Lever-lock rings and covers with fittings are also available, see below. select color choice when ordering. these drums can also be color matched to your specification at no extra cost and with no minimum order. ask your basco customer service representative for details.