Luxilon Natural Gut brings a new innovation to the oldest string in tennis. A unique coating and organic raw material provides the ultimate touch. Engineered to work in combination with Luxilon monofilament strings, Luxilon Natural Gut is built to elevate your game to the highest level. Luxilon recommends hybrid stringing with their monofilament strings such as ALU Power and 4G. Each set is marked at the midpoint for easy half set measurement. Packaged in a resealable bag for storage of half set.