Plastic fence posts are critical to hold your electric fencing off the ground. Horse fence posts are usually 3ft or 4ft and come in white or green plastic . The all have electric fencing insulators built in to them so that the electric fencing posts can hold both 20mm electric fencing tape and well as 40mm . All the insulators on the plastic fence posts will hold electric fencing rope.
if this reads strangely it is because it is written for the search engines and not people :-)
Additionally farmcare supplies metal pig tail posts . These are used in fencing farm animals like electric fencing around pigs and electric fencing around sheep. There all metal construction means that electric fencing insulators are required to hold the electric fence to the metal stock fencing post.