Featuring patented SI3D technology

The frame uses more layers* of graphite to increase the stiffness of the racket

provides greater stability and optimizes energy transfer from racquet to ball

Wilson's multiple carrying system lets you choose to carry the bag in your hand

all-round racket

Head Sonic Pro 12m strängset 1.25mm black bollmaskin Featuring patented SI3D technologyThe Head Sonic Pro monofilament string is designed for recreational players who need a durable and comfortable tennis string. The string is made from a unique co polyester combined with a soft molecular construction which gives a great touch and feel while giving you a lot of power for a monofilament string. Specification: Perfect for recreational players Durable and comfortable to play with Length: 12m (set) Color: black What is a monofilament