uxcell RC Airplane Prop Propeller 10" Length 10x7E Adapter Rings Set Product Name : RC Airplane Propeller;Flute Number : 2;Model : APC Style 10x7E(Non-OEM) Motor Shaft Hole Dia : 6mm / 0.24";Total Length(Rotating Diameter) : 254mm / 10";Pitch : 178mm / 7" Max Thickness : 9mm / 0.32";Shaft Size Adapter Ring Inner Dia : the Biggest:8mm/0.32"the Smallest:3mm/0.12" Material : Plastic;Color : Gray Net Weight : 23g;Package Content : 1 x Propeller6 x Shaft Size Adapter Rings