Billet Aluminum Group 34/78 Optima Battery Tray - Chevy Bowtie Logo Textured Black - Red Yellow Blue Top Battery trays are machined from 6061-T6 aluminum and powder coated in a durable semi-gloss textured black finish. The upper tray has a Chevy "Bowtie" ball milled into the part. No decals or etching here! Upper and lower battery trays are machined from 5/16 inch thick plate and pocketed to keep the battery securely in position. Each standoff is made from 1/2 inch diameter aluminum tubing. Stainless Steel ASSEMBLY hardware included.