This is one of the most popular, time-tested multifilaments ever made. It offers optimal comfort, touch, power, and feel. According to Wilson, NXT offers a 10% increased sweet spot over traditional synthetic gut, as well as 74% less vibration. Players with slow to moderate swing speeds will benefit from the power of NXT. It's also great for all types of players that love the classic gut-like feel of a multifilament, as well as being a great option for polyester string users as part of a hybrid. Tennis elbow sufferers looking for a softer, more comfortable string should also give NXT a try. Save money with this economical 4 pack!