Under Bed Tool Boxes are designed for heavy-duty trucks and semi trucks to keep larger, heavier items and tools secure, yet easily accessible. The Model 550-5-02 is a steel jumbo size underbed truck tool box with a storage capacity of 16.2 cu ft. The Gloss Black ARMOR TUF® Powder Coat finish ensures years of dependability. The rotary style, two position latch helps protect against theft and weather.