Steel tool boxes require a durable weather-resistant finish, and these boxes are typically available in white or black colors ...

This truck bed tool box is built for maximum lid ... integrity and helps prevent binding EXTRA-THICK ALUMINUM. This truck utility box features a one-piece tub made from welded 0.058-inch aluminum.

Made of black ... tool boxes are designed to be stacked on top of each other, too, if you buy more than one of the same kind.