Specification: Weight: 12.7g Dimension: 22.8—12.2—28.5mm Stall torque: 1.8kg/cm (4.8V); 2.2kg/cm (6.6V) Operating speed: 0.10sec/60degree (4.8V); 0.08sec/60degree (6.0V) Operating voltage: 4.8V~ 6.6V Temperature range: 0_ 55 It universal  type connector that fits most receivers, including Futaba, JR, Hitec ,GWS, Cirrus, Blue Bird, Blue Arrow, Corona, Berg, Spektrum. INCLUDES: 1Pc Servo Motor With Arm & Screw