This is a set of SAB 580mm "S Line" Main Blades. The S Line of blades features an updated aerodynamic profile and construction that provides good thrust and stopping power, without the need for high RPM to achieve the same results. The updated design provides are stable, and provide a smooth and linear reaction to your inputs.

Specifications:
Length: 580mm
Width: 40 - 52mm
Root Size: 10mm
Bolt Hole Diameter: 4mm