Propeller Diameter: 2.5 inch        Pitch : 2.5                  Blades : 3 Material : Poly Carbonate          Weight :1.2g Hub Diameter : 9.8mm           Hub Thickness:5mm         Shaft :1.9/1.5/1.9mm Adaptor Rings : NO Includes 2 x CW HQ Durable Prop T2.5X2.5X3 2 x CCW HQ Durable Prop T2.5X2.5X3