Polished Aluminum Relocation Battery Box Kit, 12 x 8.5 x 10.5 Aluminum Battery Box Kit , Dimensions: 12" long x 8.5" wide x 10.5" high Kit includes all necessary hardware shown on picture for direct bolt in. High Quality Hardware, Copper Connectors. Billet Aluminum Hold down Mount. (Many other Competitors offer very low quality cheap hardware) Fits most battery sizes. Heavy duty one-piece welded battery hold down and mounting hardware included.