Sea-Dog Battery Terminal Covers - Red/Back - 1/2in One Size. Constructed of injection molded PVC. These covers satisfy USCG and ABYC requirements for the prevention of accidental grounding of battery terminals. Color coded to avoid polarity misidentification. Will fit most marine batteries as well as automotive batteries using add on marine terminals. Specifications for Sea-Dog Battery Terminal Covers: Manufacturer: Sea-Dog Diameter: 0.5 in Color: Red/Black Features of Sea-Dog Battery Terminal Covers Injection Molded PVC Corrosion resistant Strong durable Designed for quick and simple installation Color: Red/Black Package Contents: Sea-Dog Battery Terminal Covers Sea-Dog 415110-1: Battery Terminal Covers - Red/Back - 1/2in One Size