WHAT IS IT? Polyurethane is a material highly resistant to tension and compression. In the United States use it to make holds for many years, but the look and feel of the "American Holds" has always been very "plastic" so that has gripped Europe, also from its high price. ROKODROMO.COM been achieved, thanks to its unique and exclusive design, making the feel and appearance of these holds is exactly equal to the typical resin hold. If you install one of our resin hold near the same hold made ​​of polyurethane, never differ one from the other, then the question arises WHAT CHANGED? THINGS CHANGE: A) RESISTANCE TO WEAR OR POLISHING. According to our tests, resistance to wear and polish of our Polyurethane holds is almost two times higher than resin holds. B) Tensile strength. In this case the evidence is even more conclusive, is "almost impossible" to break the press, a well-built Polyurethane hold. Similarly, hold "fall" to the ground without any fear of breaking or splitting at the top of our room with the danger that entails ... C) WT. The weight of a polyurethane hold is about half that of a traditional resin hold. This is especially useful when we are placing large holds, and to avoid overloading the structure of our room.