This Seachoice Premium Battery Tray is a strong, reliable holder for a Group 31 battery. This tray has a strong base tray and top perimeter piece, and the top and battery are held securely in place by two included corrosion-resistant Stainless Steel hold-down rods. This Premium Battery Tray's interior dimensions are 12 15/16 inches x 6 ¾ inches x ½ inch. It will not hold Exide® batteries. Seachoice is committed to delivering quality marine accessories and OEM replacement parts to satisfy fishing, boating and watersports enthusiasts worldwide. Seachoice is run for and by boaters, offering a wide-ranging product line while remaining affordable.