The DeWalt T-STAK Toolbox is a mobile modular storage system that allows you to quickly and easily change the combination of tools you take to work. These cases stack effortlessly together via the specially engineered side clips, enabling easier storage and transportation. It has a suitcase flat top design and engineered plastic side clips to enable numerous boxes to be stacked and held securely together for transport. Dimensions: Width : 440mmDepth : 314mmHeight : 176mm