Specification 
Diameter: 10 "(25.4 cm) 
Slope: 4.7 "(11.93 cm) 
Washer diameter: 3/3.5/4/ 4.8 /5/6/ 6.35mm 
Material: Nylon 

Package Includes: 
2pcs x 10x4.7 CW & CCW Propeller