Head sonic pro tennis string set
Head sonic pro tennis string set this head sonic pro tennis string set is made from uniquely refined co polymer polyester with a soft molecular construction sonic pro string offers excellent control and touch though polyester strings are stiffer durable and more control oriented sonic pro is soft feeling and offers a livelier response gauge 17 125mm length 40ft12m composition polyester control and comfort head branding 16g 40ft black 16130mm