These Fiber Drums With Lock Rim have superior stack strength for Class 300 dry or solid products. The welded steel chime on the UN-certified drums secures the metal top and bottom to the fiber wall to add extra support for heavier materials. Easy-on, easy-off lever lock drum cover on our Fiber Drums With Lock Rim accepts tamper-evident seals. The drums are available in 15-, 30- or 55-gallon sizes with up to 400 lbs. of maximum net weight.