ENPAC Hardcover Outdoor Drum Storage has a space-saving design, which features roll-back doors that allow easy top or side loading and unloading of drums. Roll-back doors pull down and lock securely giving you the best protection against theft and extreme outdoor elements. 100% polyethylene construction will not rust or corrode, while the high-capacity sump contains spills. Meets EPA 40 CFR 264.175 requirements. Ships unassembled. Made in USA.