MODboxT components easily interconnect for a customized mobile workstation. Built-in side rails allow for attachments and easy access to frequently used items and tools. 10-Inch solid rubber wheels are larger and more durable than the leading competitor. Telescoping handle is fully removable for transport in truck beds with covers or small car trunks. Items that are long and typically awkward to carry can be stored easily in the back of the system for easy stowage. Rolling toolbox is made with impact resistant polymers, IP65 rated for protection against debris and rain, and can withstand a 250-Pound (113.4 kg) carrying capacity. Lid features V-groove contoured for pipe, molded in ruler for easy measurement, and steel reinforced lock location for cable or padlock.