XOAR PJM-E 16x8 Electric RC Airplane Propeller. 16 Inch 2 Blade Black Wood Prop for Electric Motor PREMIUM MATERIAL: Made of Premium Top Grade German Beechwood. It is excellent for minimal elongation, breakpoint and distortion, therefore it is the best for making Wooden Model 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 Plane 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 RC airplane propeller. COLOR: Metallic Black Matt Paint Finish SPEC: Diameter: 16 in | Pitch: 8 | Weight: 36g | Shaft Diameter: 8mm | Type: Tractor Propeller