Made from heavy-duty diamond-tread aluminum the Buyers Lo-Side Top Mount Tool Box is designed to mount quickly and easily on the side rail of your pickup. No drilling is required; simply use the included heavy-duty steel mounting legs and J-hook hardware to install without damaging your truck.This tool box features a top-opening lid with a one-touch push-button rotary locking mechanism and two gas shocks for safe and easy operation. Inside a removable storage tray with dividers provides plenty of organized storage for all types of tools.Use this box on its own or in combination with a cross box or saddle box. Note: when used with 20-inch wide cross boxes the 70-inch Lo-Side Tool Box provides maximum tool box use on long-bed pickups. Please measure your truck bed before purchasing to ensure the correct fit.