Autoloc’s billet aluminum battery mount for Optima and Optima style batteries. Precision CNC machined for battery fitment. Drain holes drill in to the bottom plate to prevent build up of moisture. Choose plain or polished. This standard billet aluminum mount is just what you need for Optima batteries. Features lengthwise hold down. Precision CNC machined for fit and has drain holes to prevent build up of moisture. Unpolished adds the precision Hold down is across the battery. Precision CNC machined for fit and has drain holes to prevent build up of moisture. Choose plain or polished.This standard billet aluminum mount is just what you need for Optima batteries. Features lengthwise hold down. Precision CNC machined for fit and has drain holes to prevent build up of moisture. Unpolished.FOR GROUP 34 & 78 BATTERIESFeatured on several TV shows including Monster Garage, and Pimp My Ride AutoLoc kits deliver where all others fails. Insist on the best, and insist on AutoLoc and you be glad you did.