GT Technology is a hybrid material that combines braided carbon fibers and tungsten filaments, which can be found throughout the entire Babolat Pure Drive Roddick GT racquet. This strengthens the frame to reduce torque and provides additional energy recovery for more power. Head size: 100 sq. in., Weight: 11 oz., Length: 27 in., Balance point: 7 pts. HL, Composition: Graphite/Tungsten, Stiffness: 74 ra, Grip: Syntec. 101075