The Head(R) Junior Speed 23 Tennis Racquet is perfect for younger players, finding their niche in the sport. The racquet is best suited for kids 6 and older, featuring an aluminum o-beam construction. Junior Tennis Aluminum o-beam construction Best suited for players 46-49 inches in height Pre-strung Additional Details WEIGHT (UNSTRUNG): 215 g / 7.6 oz STRING PATTERN: 16/18 HEAD SIZE: 630 cm^2 / 98 in^2 BALANCE: 280 mm / 0.5 in HL LENGTH: 585 mm / 23 in BEAM: 20 mm AGE: 6+