1. First identify the edge with the open square holes and the other edge with the slits. Note that on one edge, there are two or more parallel rows of slits. In step 3, you will need to choose the appropriate row of slits to create a cone that is the correct size.
2. Bend the cone into a cone shape such that these edges overlap. The square holes on one edge of the cone should lie on the outside (convex surface) of the cone on top of the slits on the other edge. To assemble the cone, the square holes and the slits will be held together by weaving a long plastic strip
3. Since there are two or more parallel rows of slits, this is the opportunity to size the cone properly. Choose an amount of overlap (i.e., a particular row of slits) so that it fits tightly around the tree trunk
4. Wrap the cone around a tree trunk under the level of your fence top.
5. With the square holes lined up with the chosen row of slits, you can now use the long plastic strip to weave the two edges of the cone together in overlapping fashion. Bend the long strip of plastic to the outside (convex surface) of the cone, and slip it through the closest square hole and the first slit beneath that hole. Pull the strip all the way through into the concave part of the cone. Then feed the strip through the second slit and back through the same square hole, and pull the whole tab through to the convex surface of the cone. Pull firmly on the long strip to firmly seat the edges of the cone together; there should be two small plastic “shoulders” that prevent it from feeding too far in. You should now have the long strip forming a loop then diving into the cone and back out again, binding the two edges of the cone together at that point.
6. Repeat this “weaving” process with the second and third square holes (and their underlying strips) to fasten the edges of the cone together at three points and make a solid, firm cone.
7. To make loops for the zip tie that will hold the cone in place around the tree trunk: curl each of the three or four small tabs toward the convex surface of the cone, and push each one first through the bottom slit (pointing it to the concave surface of the cone) and then back out through the second slit.
8. Use the zip tie that came with the cone to push it through the loops of the cone assembled in step 7. Close the loop of the zip tie by threading the end of it through the hole on the other end of the zip tie. Pull on it as much as possible so that it tightly fits around the tree trunk.