With its massive sweet spot and distinctive flip design, the Head Graphene 360 Gravity TOUR Tennis Racquet is a perfect match for the aggressive next generation player. The racquet's distinctive sweet spot comes from the teardrop-shaped design, while the 18x20 string pattern provides the necessary control required by tournament players. The GRAVITY TOUR features the new Graphene 360+ technology, a combination of Graphene 360's energy transfer and innovative spiralfibers for an enhanced flex and clean impact feel. The GRAVITY Series is endorsed by Alexander Zverev. Racquet comes Unstrung Grip Size 1-5 Head Size 645 cm sq. / 100 in sq. Cross Section 22mm Weight 305g / 10.8oz Length 685mm / 27in Balance 320mm / 1 in HL String Pattern 18/20 Model Number: 234219 Item# 12165