Features:

High quality 100% 3K all carbon fiber board which imported fromJapan improve material.

Each pair of propellers has perfect dynamic poise and static balancing which balance by manpower.

Especially improves the air-poweredefficiency and aerofoil stability.

High quality ultra-light carbon fiber propellers especially designed for multicopters.

Carbon fiber forward propeller*2

Carbon fiber reverse propeller*2

Main Hole Dia 4mm/3mm

Side Holes Dia 2mm/3mm

Center distance 9mm/12mm