The Thunder 1131 is a 100% graphite racquet that uses the square head shape technology. This enlarging of the "sweet spot" allows for ease of play and learning for beginners and novices alike.
Weight : 3U
Length : 675 mm
Shaft Stiffness: S○○●○○F
Balance：HH○○●○○HL (HH=Head Heavy---HL=Head Light)
Frame Material : Graphite + Resin
Shaft Material: Graphite + Resin + 7.5 shaft