RELIABLE BOAT ACCESSORY: Now convert your car or truck batteries to use them for the boat with the Shoreline Marine Terminals Battery Kit. A must-have for every boat owner, this kit saves your time and money to buy boat-specific batteries. STURDY & DURABLE: These battery terminal connectors are made of high-quality lead with coated wing nuts to ensure lasting performance and complete connection. They are durable, high temperature resistant, and ideal for marine-grade use. EASY INSTALLATION: Suitable for standard battery posts, you can fix these lead battery terminal connectors to offer a quick and easy installation. Both the units in this kit are designed with threaded posts to make these ideal for marine applications. KIT INCLUDES: This battery terminal connector kit includes two units to convert car or truck batteries for marine use. It has one 5/16" negative black terminal and one 3/8" positive red terminal and you can tighten these easily around the post of a standard battery. CALCUTTA OUTDOORS: A leading manufacturer of consumer products for the outdoor sports and recreation market providing performance-driven products, including fishing rods, tackle, coolers, drinkware, outdoor apparel, paddle sports, and marine accessories.