XOAR PJWWI Scimitar 20x8 Dark Warbird RC Model Airplane Propeller. 20 Inch 2 Blade Classic Scale Wood Prop for Gas Engines PREMIUM MATERIAL: Made of Premium Top Grade German Pollmeier Lumber. It is excellent for minimal elongation, breakpoint and distortion, therefore it is the best for making Warbird Wooden Airplane Propellers. CNC DIGITAL IMAGING: CNC digital imaging process ensures consistent quality in diameter, propeller blade profile and pitch which are all crucial for RC aircraft performance. PRE-BALANCED* : Each Xoar prop is manually finished to reach perfect surface smoothness. It is balanced both horizontally and vertically for minimal vibration caused by airplane propeller. SPEC: Color: Dark Wood | Diameter: 20in | Pitch: 8 | Shaft Diameter: 10mm COMPATIBLE ENGINES: 30cc to 40cc Engines - DA-35, DLE-30, DLE-35RA, DLE-40 or similar