The Barnes 4WD Dual Optima Dual Battery Box is cut from 1/8" steel and formed for a very snug fit around your common 34/78 Optima battery size to prevent any movement. This battery box was designed to give you the most mounting options possible. This is why we use two separate tops for our battery dual battery box. What good is it too have batteries that you can mount in any orientation if it takes three people to try to hold both batteries in place while you try to install a one piece top. The two piece top also this design gives you the most flexibility of how you want the batteries facing. Each Battery box kit comes with the coated 5/16" hardware as well as lock nuts to prevent your fasteners from coming loose or corroding.
*BATTERIES NOT INCLUDED