MUST READ FITMENT NOTE: CUSTOM FITTING TOOL BOX. CUSTOMER MUST CALCULATE THEIR OWN MEASUREMENTS WITH INFORMATION PROVIDED TO ORDER PROPERLY. SELLER NOT RESPONSIBLE FOR INCORRECT FIT. CONTACT US IF YOU HAVE ANY QUESTIONS OR NEED HELP CONFIRMING FIT. || Description: Please order equivalent box #EC30361, which is heavily packaged for parcel shipment Mounts on the inside of the truck bed rails to provide additional storage space Patented RigidCore foam-filled lid to maximize strength and prevent binding Low profile provides better field of vision for enhanced safety 0.058" extra-thick, one-piece aluminum tub holds heavy tools and cargo. Lockable, push-button operation with non-corrosive stainless steel construction. MicroSeal gasket helps seal out moistu .