Length: 7inch; Screw pitch: 5.5mm; Three installation holes: 1 x 4mm center hole， 2 x 1.5mm side holes， hole pitch: 12mm; Suitable for 200 / 250 / 300 mini quadcopters
Dimensions: 7.09 in x 1.97 in x 1.18 in (18.0 cm x 5.0 cm x 3.0 cm) Weight: 0.92 oz (26 g)