Flyermate A6.0 Servo specification -Weight:6g -Operating Speed: 0.12sec/60 degree(4.8v) 0.10sec/60 degree(6v) -Stall Torque 1.2kg/cm(4.8v) 1.8kg/cm(6.0v) -Operating Voltage: 4.8v - 6.0v -Dimension:22 x 20 x 12.5(mm) quality mini servo suitable for our 1 metre Kits - also 400 size helis - In stock now.