The Zareba® Small Ceramic Lag Screw Insulator helps prevent electrical shorts by stopping electricity from escaping from the fence into the post, ensuring your electric fence runs at full capacity. Made from durable ceramic, this insulator is strong and reliable, designed for use with wood posts. It is compatible with all types of fence wire, including high tensile wire, polyrope, and polytape, ensuring secure attachment of electrified wire to the post without energy loss.