Have access to the terminals while the battery is securely in place with a heavy duty battery tray Attwood battery trays are constructed of a heavy duty non corrosive black plastic and provide access to terminals while the battery is secured. Two mounting screws are located at each end of the tray, accept #10 fasteners and are accessible even with the battery in place. Two stainless steel retaining bolts adjust to lock down your Group 29 or Group 31 battery. Ideal for applications that do not require batteries to be completely encased. Key Features Heavy duty non corrosive plastic Stainless steel rods secure top frame to base Molded-in pre-drilled for #10 fasteners (sold separately) for easy installation; fasteners accessible with battery in place Compatible with Group 29 and Group 31 batteriesMeet ABYC Standard E-10 and U.S. Coast Guard requirements Specifications: Dimensions: 13 1/16"L x 6 7/8"W