BLOCKS CORROSION AND OXIDATION - Automobile Batteries, Marine Batteries, Junction Boxes, Terminals, and Light Bulb Sockets | ENHANCES ELECTRICAL CONDUCTIVITY - CB Antennas, Model Railroads, Mechanical Mods, Audio/Video Connections | THOUSANDS OF USES - Around the Home, Shop, or Field. Great for New Installations, Maintenance, or Repairs | ROHS COMPLIANT - Produced from Pure Virgin Clean Raw Materials | APPLICATION BRUSHES INCLUDED - For Your Convenience