Product Details: The Deka 17" x 9.75" x 11" Large Polypropylene Marine Battery Box is the perfect solution for storing and protecting your large battery. This box is designed with enough room for storage and safety to accommodate big marine batteries. It also incorporates a ventilation system to stop heat and gas accumulation. The box is equipped with a reliable hold-down strap to keep the battery in place and prevent movement or damage. This box is made of durable polypropylene and is designed to withstand the harsh environment. FleetPride is your First Click in Heavy Duty®.