Gizmo Supply Aluminum Heavy Duty Underbody Tool Box (24 Inch) This box conveniently mounts under your vehicle for space saving storage 5 bar tread pattern strengthens the aluminum for maximum durability Built-in lock ensures all items are kept safe and secure Drop down door provides full access to the box Overall Dimensions: 23-7/8"(L) x 15-3/4"(W) x 17-3/4"(H)