These propellers are curve hole (cut style Hub)
For exactlly fit on the shaft of motors like Dji Emax Racerstar
u can see in pictures above....
High quality and durable in use, Easy to install.
Size: 10 x 4.5''
Diameter of Shaft: 6.0mm - 8mm
Thickness of center: 9.0mm
COLOUR : BLACK
Package including :
1 pairs 1045 propeller ( color black )