Propeller Diameter:2 inch Pitch :1.5 Blades : 6 Material : Poly Carbonate Weight :0.94 g Hub Diameter : 9.45 mm Hub Thickness:4.55 mm Prop Shaft 1.5mm Adaptor Rings : NO Includes 2 x CW HQ Durable Prop T51MMX6 2 x CCW HQ Durable Prop T51MMX6