This knot builds a loop that
will easily get bigger - by sliding the knot up the rope toward
the free end. But, when pressure is applied to the loop, it
will not get smaller. Its most common use in Troop 9 is on the
ropes that attach a tent to tent stakes in the ground. The loose
end is attached to the tent. The loop goes around the stake
and the knot slides by hand to tighten or loosen the rope. But
the knot will not slide by itself.