2pcs DIY Prop Propeller 10x4.5L w Adapter Rings for RC Model Airplane Product Name : RC Airplane Propeller;Vane Number : 2;Model : 10x4.5L(Non-OEM) Motor Shaft Hole Dia : 6mm / 0.24";Total Length(Rotating Diameter) : 255mm / 10";Pitch : 4.5" Max Thickness : 10mm / 0.39";Shaft Size Adapter Ring Inner Dia : the Biggest: 7mm/0.27"the Smallest: 2mm/0.08" Material : Plastic;Color : Black Weight : 22g;Package Content : 2 x Propeller14 x Shaft Adapter Ring