This is the Hobbywing Platinum 4120SL Brushless Outrunner RC Plane Motor - 610KV [30416002].

Designed with Dual Dynamic Balance Technology, this motor delivers unmatched efficiency and smooth operation. It also features superior heat dissipation for extended performance and a patented propeller locking system for enhanced flight safety.

Features:

• Dual Dynamic Balance Technology for smooth operation
• Boosts efficiency by over two percent compared to competing motors
• Superior heat dissipation for extended runtime
• Patented propeller locking system for added flight safety
• Diamond-shaped anti-slip propeller mount for enhanced reliability

Specifications:

• Suggested Application: Aircraft/Drone
• Size: Platinum 4120SL
• Type: Brushless Outrunner
• Voltage: 6S (22.2V)
• Adjustable Timing: No
• Watts: 2252
• Connector: Bullet
• Dimensions: 1.95x2.85in (49.5x72.3mm)
• Shaft Diameter: 6mm
• Weight: 11.18oz (317g)(with wire)

Includes:

• (1) Platinum 4120SL Brushless Outrunner Motor
• Motor Hardware and Accessories