Top Spin Plus 15L/16 Duraflex
 
With this string, Prince puts its legendary synthetic gut formula into a durable and spin-freindly package. Features raised ridges for added bite and easier access to spin. The combination of a thick 1.38mm 15L gauge or 1.30mm 16 guage and a special Duraflex coating makes this is a great option for those who want extra durability and control without having to switch to a stiff polyester. Offers impressive comfort for a thick and durable string.