Head Challenge Lite Tennis Racket, Grip Size- Grip 2: 4 1/4 inch The Head Challenge Lite is very maneuvrable, responsive and fast, and it still offers good levels of control. Beginner and recreational players will enjoy the ease with which they can move this racket as well as the power from the 100 sq. inch head with spin from the open 16x19 string pattern. The racquet is evenly balanced and made from full graphite for great performance, all at a very low price. It is pre-strung and includes a full cover for protection between uses. Head Size: 100 sq. in / 645 sq. cm / Length: 27 inches (685 mm) Weight: (unstrung) 9.2 oz / 260g (strung) 9.7 oz / 275 grams Frame Construction: Full Graphite String Pattern: 16x19 - Racquet is professionally strung by HEAD and includes full cover.