Has fast reaction, low failure rate, long service life and high accuracy and efficiency, which is flexible to control Easy to install and use. High quality, waterproof design, ideal choice for RC FPV helicopter, boat and car,Fixed wing With bearing, masses of torque, excellent speed, the gear set and case are super tough Item: ES 9051 (4.1g) Plastics Digital Servo Parameters: Operating voltage: 3.6-5.3V Operating speed: 4.8V/0.09s /60 Stall torque: 4.8V/0.8kg. cm Dimension: 19.7x8.3x23.2mm Weight: 4.3g Terminal: ; JR (The product appearance and printed words depending on the batch, but this does not affect use) Color: As Shown Material: Metal Package Contents: 1 x Digital Servo Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.