Will hold most small sealed batteries from Group U1 lawn and garden batteries and smaller. Includes strap to secure box cover. Vented on top and sides. Front and side openings in lid for cable entry. Side handles for easy carrying. Mounting holes in handles for securing to base with optional bolt kit. If using outdoors and exposed to rain, seal vent holes on top to keep water from entering the box. Exterior Dimensions: 11.0"L x 7.5" W x 8.6"H Interior Dimensions: 8.5"L x 5.9" W x 7.9"H U.S. Coast Guard approved - 183.420, ABYC E-10.7