Check the listing for details. TWO Battery Terminal Insulation Covers 18mm Diameter Battery Post Cap Universal. Condition: New. Listed at 11.60 USD. UNIVERSAL FIT: Battery terminal caps are universal for most car truck motorcycle marine etc and suited for both positive and negative battery terminals.UNIQUE BENEFITS:This car battery terminal post cover is used to reduce the chances of accidentally short-circuiting battery terminals from each other.This battery Insulation cover help protect battery terminals from corrosion-causing and keep the engine bay clean.Made of durable PVC material, it's heat insulation, dustproof, antiwear, and not easy to break.Easy to install and convenient to use, no need for special tools.SPECIAL FEATURES:Product Color: Red, BlackProduct Material: PVCProduct Size: 60x42x31mm / 2.36"x1.65"x1.22"(L*W*H)Inner Part Size: 44x35mm / 1.73"x1.38"(L*W)Hole Diameter: 18mm / 0.71"EASY INSTALLATION:Universal fits cars, trucks, motorcycles, boats, etc.