Tecnifibre Squash Racquet The Carboflex 135 Basaltex is designed for skilled players who want lightweight, all-around racquet performance. It features Basaltex Transmitters, a 100% natural mineral fiber from volcanic lava located in line for flex control. It increases strength, power and enhanced feel. It also features the Isomorph Shaft that increases stiffness by 25% for more power! Frame Weight: 135 +/- 5 g / 4.70 oz Balance: 355 +/- 5 mm Head Size: 500 cm2 / 77.5 sq.in. Composition/Construction: Graphite/Basaltex String Pattern(Mains X Crosses): 14x18 Frame String: Tecnifibre Synthetic Gut 1.25 (Black) Technology: Basaltex Transmitters, Isomorph Shaft RACQUET COMES FACTORY STRUNG WITH TECNIFIBRE SYNTHETIC GUT 1.25MM. NO RACQUET COVER INCLUDED.