Features:High-efficiency CCW Wooden Beech Propeller for RC airplane Nitro Engine and Gasoline Engine.Length: 20inch (508mm); Pitch: 8inch(203mm); Hub: 1.81inch(46mm); Hole: 0.39inch (10mm).Weight only 3.72oz (105g), lightweight and won& 39;t put any burden on your RC airplane.If you want one more replacement propeller for the occasional need of your RC airplane, but this one will be your best choice We have various sizes of wooden propellers for you to choose from. We hope you can buy suitable and satisfactory products here.Specifications:Brand: Dancing Wings HobbyMaterial: Wooden materialLength: 20in/508mmPitch: 8in/203mmHub: 1.81/46mmHole: 0.39in/10mmThickness: 0.78in/20mmWeight: 105gPackage Information:Package size: 510*22*20mmPackage Weight: 108gPackage List: 1* Wooden Propeller 20*8