Main rotor diameter: 630mm/24.8in
Tail rotor diameter: 152mm/6in
Length: 670mm/26.4in
Weight: 530g/18.7 oz

2.Features:
★.Collective pitch for 3D flight
★.Independent gyro system
★.Reliable gear system
★.Accurate tail pitch control system
★.Tail servo mount for accurate rudder control
★.Reinforced carbon fibre tail rod
★.High intensity stainless steel shaft
★.Advanced version with brushless motor and lipoly battery

This 3D helicopter is equipped with great brushless power system and small weight Li-po. battery, with collective pitch and full symmetrical rotor. It can perform the aerobatics such as roll, dive, inverted flight and 3D perfectly.