Baygard Insulated Underground Cable Polyethylene coated aluminum wire ideal for under gate wire and attaching the energizer to the fence. Use anytime wire needs to be insulated. Product Features: 12 gauge aluminum high conductivity wire 2 mm polyethylene coating avoids unwanted shock Insulated for up to 20,000 volts Specifically designed for use with electric fencing Item Specifications: Color: Black Size: 49.2" Spool