It's anywhere you can bolt the tray down, such as trunk, seat pan, side wall, bulk head, floor, frame. And our battery hold down can be installed in car, truck, boats, Side by Side, or any ATV & UTV. Simply bolt the base down with 4 bolts and drop the battery in the box and bolt the top cover onto the base and done! This will NOT fit the 34R batteries as they are different from Group 34 batteries. StreetRays battery hold down brackets / box is CNC cut from 11 Gauge A1008 USA Steel sheet and formed on our Amada press brake to give you reliable product each and every time.The battery box is not painted so you can create your own custom finish or install it as it is. Simply bolt it down and you're ready to go. Our battery box will hold your battery in place no matter what. It's lightweight and it's effective and super easy to place and install. We include 2 pairs of nuts & bolts to close the box. The item "SR Battery Steel Mount Box Kit for Red Yellow Top Optima Off-Road Rock Crawler" is in sale since Thursday, August 29, 2019. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Charging & Starting Systems\Battery Trays". The seller is "streetrays" and is located in Pflugerville, Texas. This item can be shipped worldwide.