Brand Name: GTB Origin: CN(Original) Tool Supplies: CNC CUTTING Material: Aluminum Alloy+ Carbon Fiber Upgrade Parts/Accessories: CNC Metal RC Parts & Accs: 450 SE PRO Frame Use: Helicopter Model Number: 450PRO Remote Control Peripherals/Devices: 450PRO Frame For Vehicle Type: 450PRO Helicopter Four-wheel Drive Attributes: Assemble frame RC Remote 6CH 3D 450 SE PRO Helicopter Frame Align Trex Heli Stand with FBL Flybarless Rotor HeadSpedifications and Equipment:Length:635mmHeight:230mmMain Blade Length:325mmMain Rotor Diameter:710mmTail Rotor Diameter:158mmMotor Pinion Gear:14TMain Drive Gear:150TAutorotation Tail Drive Gear:106TTail Drive Gear:25TDrive Gear Ration:1:10.7:4.24Weight :450gFlying Weight:Approx.780g label: 450 Pro Helicopter Frame Stand