Constructed from Rotational molded plastic that is resitant to battery acid. These sealed battery cases are designed to fit Group 24 style batteries with top or side post terminals. Case is completely sealed with gasket contained in the lid and includes a Vent Tube to carry battery gasses outside of vehicle. This kit includes racing sanctioning bodies approved 3/8" hold down rods along with all necessary mounting brackets and hardware. Overall dimiension of the box are 10-1/2" long x 13" wide x 9-1/2" deep. Black in color and sold as a Kit.