XLPower MSH PROTOS 380 Specs Brand: XLPower Model: MSH PROTOS 380 Main Blade Size: 325~380mm Height:235mm Length:785mm Tail Blade Size: 68mm Width: 110mm Main Gear: 120T Motor Pinion: 20~25T 5MM Diameter(21T included) Autorotation Gear: 94T Tail Pinion: 22T Max Battery Size: 35*40*115mm Main to Tail Gear Ratio: 4.27 XLPower MSH PROTOS 380 Price Banggood Price:US$199.99