For best results, use a hammer hitting each spike evenly. If one or more spikes comes in contact with a rock, remove spike or bend it out of the way. If the ground is too hard for initial installation, try saturating with water or installing after rainfall.
To Keep Pets In:
Install from outside of pen, driving unit in at a slight angle (toward pet). On deep problem spots, install a second unit on opposite side of fence driving straight into the hole locking in the first unit.
To Keep Predators Out:
Install from inside of your pen driving unit in the ground at a slight angle (toward predator).
To Hold Fence Down:
Place the spikes over the bottom wire of your fence. When filling a gap in a wooden privacy fence, install from the outside of your fence simply driving the unit in at a slight angle toward the inside of pen. Stop driving when the top lateral wire is even with bottom of fence.
To fill a gap:
On a wooden privacy fence, install from outside of fence driving unit in at a slight angle. Stop driving when the top lateral wire is even with the bottom of the fence. If wood is being chewed, install from inside of fence straight into ground and attach top lateral wire with a staple.