These Dare snug electric fence insulators are an ideal choice for temporary fencing using wood posts. This electric fence insulator 25-pack contains black insulators designed for high tensile use. Molded from high-density polyethylene with carbon black for UV resistance, these insulators perform well in any climate. A large diameter flange prevents arcing and heavy fingers hold wire 3/4 inches (1.9 cm) from the post. Galvanized nails come included for easy installation.