Special Diamond shape tensioner ensures more precise and even spin application
Ribs around outer rim to ensure complete air seal
Recommended hardness / FPS combinations:
- Green / 50 degree: 280-330 FPS
- Yellow / 60 degree: 320-360 FPS
- Blue / 70 degree: 360-400 FPS
- Pink / 75 degree: 380-460 FPS
- Black / 80 degree: 460 FPS up