|    Diamete   | Φ25.4  Φ31.8 
|      Width     | 560 580 600 620 640 660 680mm

| Back Sweep | 10°

|   Up Sweep  | 3°
|        Rise       | 20mm

|     Weight     | 260g(BT FOV W：620)

|      Finish      |  Sand Blasted Anodized Black or Silver