5PCS Black Plastic 6 Blades Ducted Fan Blade 65mm for RC Aircraft Product Name : 6 VanesDucted Fan Propeller;Rotor Diameter : 2.56"(65mm) Fit Motor Shaft Diameter : 6.8mm/ 0.27";Hub Total Height : 20mm/ 0.8" Material : Plastic;Color : Black Weight : 46g Package Content : 5Pcs x 6 VanesDucted Fan Propellers