5pcs DIY Motor Propeller Prop 7040 7x4 for Electric RC Aircraft Product Name : RC Airplane Propeller;Model : 7040;Vane Number : 2 Prop Shaft Hole Dia : 2mm / 0.08";Total Length(Rotating Diameter) : 175mm / 7" Pitch : 4";Max Thickness : 23mm /0.87" Material : Plastic;Color : Black Net Weight : 35g;Package Content : 5 x Propeller