YOG29L Brand: EMAX. Model: BL2815. KV: 950 RPM/V. No. Of cells: 3S Li-Po. Max. Efficiency current: 20 to 30A. No load current: 10V/1.7A. Current capacity: 31A for 60sec. Dimensions: 30*15mm. Shaft diameter: 5 mm. Weight: 112 g (3.9oz). Recommended model weight: 600 to 1400g. Comes with cross mount， bullets， screws， and props. Compatibility: 400-500 Size RC models. Package Details Weight: 211.86 g Size: 13*10*5 cm Package Includes 1 × Brushless Motor Kit