Dunlop Silk Pro string set is Dunlop's closest feeling to natural gut ever — but with a synthetic multifilament construction. Giving you the ability to play like a pro and hit shots with maximum power and ultimate comfort with this super-premium string. Packed with flexible fibers and soaked in stretchy polyurethane, this premium multifilament has outstanding comfort and touch. To increase durability, Dunlop has added a super bonded polymer to the outer coating. Players looking for power and comfort should give this string a serious look!