MODbox components easily interconnect for a customized mobile workstation|Easily attach and move the parts bin onto any system side rail with one-handed release for added convenience|Keeps fasteners and connectors easily accessible at the jobsite|Clear lid provides visibility to contents|Create 1, 2, or 3 separate compartments with two removable dividers for added modularity|Perfect for small items such as wire nuts, fasteners, anchors, and more to keep your workspace organized|Secure the parts bin inside the rolling toolbox and medium toolbox with the internal rail accessory (Cat. No. 54818MB)