The Pro Kennex Ki 15 260 is continues Pro Kennexs tradition of featuring armfriendly technology that can help or alleviate players tennis elbow With multiple groundbreaking technologies the Pro Kennex Ki 15 260 has added power and spin to the already outstanding comfort benefits the brand is known for By segmenting the Kinetic Moveable Mass and placing it into the four corners of the racquet head Quadfocused design increases the frames torsional stability even further moving the sweet spot higher in the string face as the mass of the frame moves higher the sweet spot follows it By stabilizing the frames corners it will deflect less increasing power and spin production simultaneously Additionally the specialtreated spiral carbon offers improved dampening properties while the high modulus graphite provides strength and needed rigidityWeighing in at 260g 92 oz unstrung the Ki 15 allows players with fast swing speeds to take advantage of the Qs benefits A more headlight balance than its lighter brother and a moderate swingweight of 311 strung improves maneuverability from the baseline and at net making this a great racquet for up and coming intermediate to advanced players The proven Kinetic technology loads up the Kinetic mass on the backswing and then propels it forward at contact improving power and absorbing impact shock for exceptional comfortPro Kennex