The Racking Bend is a knot for joining two ropes of different diameter. "Racking" refers to the figure eight weaving that binds the bight of the larger rope together. It serves a somewhat similar purpose as a Sheetbend, a Double Sheetbend or a Heaving line bend, and may be used to throw a thick line over distance with the help of a thinner line at the end of which there may be a weight such as a Monkey's Fist or a Heaving Line Knot.