The SPAR-FLY combines needle bearing balance, high impact plastic, and marine grade metals for unsurpassed sensitivity and durability. Spoiler holes in the vane reduce lift and increase accuracy. Spar-Fly is unaffected by angle of heel. Easily seen from the deck because of its V- shaped silhouette and bright red color. Weighs only 1.25 oz. (35g). Comes equipped with both a top mount fitting and quick-release side mount.