? TOP QUALITY: Diesel Vehicle Battery Terminals with Material: Copper (Copper is Better Than Aluminum Alloy, as Aluminum Alloy is Contact Weakness & Strong Corrosiveness , Better Than Zinc Alloy, as Zinc Alloy is Strong Corrosiveness) ? DIMENSION: Battery Post Terminal with 65 x 28 x 20mm/2.6" x 1.1"x 0.8"(L*W*T); Screw Thread Diameter: 8mm/0.3", Positive Battery Terminal Hole Dia.: 18mm/ 0.71"; Negative Battery Terminal Hole Dia.: 17.5mm/ 0.67" ? OUT POWER: Copper Battery Terminals suit for 6V/12V. its Color: Red + Black (Positive + Negative), Black Red Plastic Protection Cover. ? USING AREA: Battery Terminals Connectors for Car, Bus Truck, Van, Ship, Boat, Caravan, Motorhome, and it can also be used in industrial and other wide range of applications etc. ? PACKAGE INCLUDES: 2 Diesel Vehicles Battery Terminals (1 Positive and 1 Negative Terminal).