uxcell 5Pairs 8 x 4.5R Two Vanes CW CCW Propellers w Locating Rings for 4-axis Plane Product Name : 2 Vanes RC Airplane CW CCW Propeller;Model : 8 x 4.5R;Fit Motor Shaft Diameter : 6mm / 0.24" Adjustable By Hole Adapter : 3mm, 3.2mm, 6mm, 6.35mm, 4mm, 3.5mm, 5mm, 4.8mm;Total Length(Rotating Diameter) : 208mm/ 8" Pitch : 114mm/ 4.5";Hub Thickness : 10mm / 0.4" Material : Plastic;Color : Orange Weight : 80g;Package Content : 5Pairx 2 Vanes RC Airplane CW CCW Propellers9Pcsx LocatingRings(Each 8 in 1)