Knaack STORAGEMASTER® Job Site Chest Box Model 89-DKnaack STORAGEMASTER Job Site Chest Box Model 89 D The Model 89 D STORAGEMASTER Piano Box with Junk Trunk is a high quality job box that's perfect for every trade. Measuring 60in wide and 49in tall, the piano box has a capacity of 43. 8 cu ft and features full width shelves for easy storage and organization of tools, supplies, and other equipment. To guard against theft, the tool storage box features a patented WATCHMAN IV Lock System with a 3 point