Gallagher G70000 Smart Fence Quick and easy to install and take down Easy to carry and store; combine posts, reels and wire in one convenient system Recommended for containment of animals trained to electric fence Four wires, ten posts and 100m (330ft) length provides an optimal, easy to install instant electric fencing solution. The height of the top wire is 107cm/42 inches (including post's metal tread-in spike) - or 90 cm/35 and a half inches from the foot of the post.