Hollow Braid Polypropylene is a very versatile rope that can be used in many different applications. Hollow braid polypropylene also called diamond brain polypropylene is constructed of 8 or 12 strands that are braided together loosely to form the shape of a rope. The construction of the rope makes it very easy on your hands and also easily splices together. This rope is good for light towing or pulling wires. Another popular use of this rope is for crowd control and tie downs because of its low cost and pliability.