Use with 55-gallon drums. Rust-resistant, galvanized steel. Adjustable thumb screws assure a tight fit. Self-closing contoured door with rubber pads for quiet operation. Meets OSHA requirements. FM Approved. Black. 241/2 dia. x 111/2h. Shpg. wt. 12-lbs.; UPS-shippable at oversized carton 30-lb. rate.