Tru-Test Datamars - Patriot Wood Post Porcelain Insulator, with nail, 25pk

Insulators prevent electrical shorts between the electrified wire and the fence posts. Good-quality insulators are critical to a properly functioning fence. Insulators are made from materials that do not conduct electricity, most commonly plastic or ceramic. Like plastic insulators, porcelain insulators are designed to hold electrified wire near fence posts without losing energy through the post. When good porcelain insulators are properly installed they should be able to last the life of your fence. Porcelain insulators are a very good choice for using with your high tensile fence system.