Flex: Stiff Frame: Ultra H.M. Graphite Micro Ti Elastic Ti Shaft: H.M. Graphite Elastic Ti Weight/Grip size: 4U (80-84.9) G4 In Depth Detail Elastic Ti is loaded towards the kick-point at the bottom of the frame allowing players to generate extra force during a smash. The box shape of the frame provides hard hitters with a stable hitting surface for a solid feel. This stability allows players to hit a controlled yet powerful smash.