This durable tennis string from the Babolat brand is suitable for players looking for ultimate control and spin. The RPM Blast Rough contains unique strings made from rugged and durable polyester. This polyester variant has an angular structure which makes it possible to give extra spin to a ball. The strings have a cross-linked silicone coating that makes them quickly return to their original position. The strings dampen vibrations, so that you feel less strain. This string has a diameter of 1.25 mm and is therefore elastically advanced. On this role comes with 200 meters of string.