This is Elf Hobby 4200Kv Outrunner Brushless Motor & 30A ESC for Walkera 60B or 60C

It can be used for the following RC Helicopters: Walkera 60B, 60C, 68B, 59B, 62B, 36B, 61B and all other compatiablity rc toys. 

Brushless Motor SPECIFICATION: 

• Type: Outrunner 12T Bevel-wheel design Gear
• Working Voltage: 6-18V
• Speed constant (KV): 4200 RPM/V
• Hollow Holding Current (10V): <=1 A
• Dimension: Φ 26x27 mm
• Diameter of axes: Φ 2.3 mm
• Weight: 42g

PACKAGE INCLUDED:

• Elf Hobby 4200Kv Outrunner Brushless Motor with 12T Bevel-wheel design Gear
• Screw x 4
• Elf Hobby 30A ESC with build-in Heat Sink