1High strength 2BB ball bearings, durable to use. 2Metal gear has high strength and good heat dissipation performance, which can output high torque as well. 3Has fast reaction, low failure rate, long service life and high accuracy, which is flexible to control. 4Suitable for 450 RC Helicopter, long service life. 5High quality and brand new.Features:High quality and brand new.Suitable for 450 380 480 500 RC Helicopter, long service life.Has fast reaction, low failure rate, long service life and high accuracy, which is flexibleto control.Metal gear has high strength and good heat dissipation performance, which can output hightorque as well.High strength 2BB ball bearings, durable to use.Specification:Condition: 100% Brand NewItem Type: Metal Gear Steering ServoColor: As Pictures ShowOptional Type: 1pcs, 3pcsMaterial: MetalModel: DS215MGSpeed:0.05 seconds / 60at 7.4V0.06sec / 60at 6.0V0.07sec / 60at 4.8VTorque:3.70Kg.cm at 7.4V3.10Kg.cm at 6.0V2.50Kg.cm at 4.8VOperating Voltage: DC4.5-8.5VWorking frequency: 1520us / 333HzMofor: 12mm corelessBall bearing: 2BBSize: Approx.22.90 * 12 * 27.30mm / 0.9 * 0.4 * 1.0inWeight: Approx.30gPackage List:1 * KST DS215MG V3.0 Digital Metal Gear Servo1 * Accessories