Variable handle adjusts to four positions for comfortable handling and easier transport of awkward loads Flip-up shelf eliminates the need to clear top shelf contents for work space. 20Lb capacity Slots around rim of upper shelf for storage of small tools like wrenches, pliers, or screwdrivers Two snap-in hooks provide additional storage options for extension cords or other items. Additional hooks sold separately. 10 lb. Capacity Small part storage near handle keeps hardware and tools organized. Cup holder included Durable structural foam construction can hold up to 500lbs (250 lbs per shelf) and won't leak, rust, chip, dent, or peel. TPR casters absorb shock and provide floor surface protection. Excellent on linoleum, tile, terrazzo, wood, smooth concrete, and carpet.