These heavy-duty corner post insulators from Zareba fasten electrified wire to corner posts without losing energy through the post. Made from unbreakable polycarbonate with a built-in wire channel that keeps wire centered and secure.

• Unbreakable polycarbonate construction - will not chip or crack
• 5,000 lb tensile strength for high-tension applications
• Built-in wire channel keeps wire centered
• Compatible with all wire, poly rope, and poly tape up to 1/2"
• Fits both round and square corner fence posts
• Designed for high-tensile, permanent, and temporary electric fences
• Withstands strain of wire at corners and fence ends
• 10 insulators per bag