Diadem Solstice Black is a new generation of a comfortable soft co-poly with a six-pointed star shape. Similar to our Solstice Power flagship string, Solstice Black due to its black pigment will play softer. Also with our improved extrusion process you will find better tension maintenance than with is predecessor. The result is a string that combines a low-friction surface with maximum ball bite. In other words, this string was built for spin - massive spin. Beginner, intermediate and advanced players looking for a comfortable co-poly with pinpoint control have come to the right place.