Tarot 450 PRO V2 Specs Height: 218mm Length: 638mm Tail Rotor Diameter: 158mm Main Rotor Diameter: 710mm Main Drive Gear: 150T Motor Drive Gear: 14T Tail Drive Gear: 25T Autorotation Tail Drive Gear: 106T Tarot 450 PRO V2 Price Banggood Price:US$143.99