These very flash folding carbon fiber folding propeller sets to suit the Quattro-X and DJI Phantom or similar. 9.4" x 4.3" Carbon fiber multi rotor folding prop set. With one left hand and one right hand propeller per set (pair) They come unassembled in a left and right pair set with 2 alloy hubs, 4 carbon fiber blades, 4 nuts and 4 bolts. One hub is anodised black and the other is silver to match their respective positions on the Quattro-X.