To set up a top anchor by webbing you need to do the following: Attach a locking carabiner to each of the three anchor points. Both ends of the accessory cord should be tied with a Figure 8 on a Bight Knot. Both knots should have a long tail. Attach 1 loop to the anchor point carabiner on the left. On the right, clip the other loop into the anchor point carabiner. Secure each carabiner. The middle section of the rope should be clipped into the middle anchor point carabiner and then lock the carabiner. A rope in the shape of a W should hang from the anchor points. Pull the bottom 2 strands of the rope to equalize the length. All the rope strands should be tied into an Overhand Knot*. Lock the Overhand Knot with a carabiner. Tighten the knot with the carabiner. Redundancy can be achieved by clipping in another locking carabiner in the opposite and opposite direction. Connect the locking carabiner(s) to your climbing rope. Secure your carabiner(s).