This is the Tower Hobbies Standard Digital TS-160 High Torque High Speed Servo with Metal Gears, Dual Ball Bearings and Universal Connector. FEATURES: For glow or electric powered helicopters, cars, boats and .20-1.60 size airplanes Standard size servo has dual ball bearings and metal gears and is great for applications requiring both high torque and high speed delivered with Digital precision One year limited warranty INCLUDES: Tower Hobbies Standard Digital High Torque Servo with Metal Gears, Dual Ball Bearings and Universal connector compatible with Futaba J, Airtronics Z, Hitec S and JR systems REQUIRES: Installing in model and connecting to linkage and receiver If Mounting Hardware is needed, order HRCM6336 SPECS: 4.8V 6.0V Speed: 0.17 sec @ 60° 0.14 sec @ 60° Torque: 110 oz-in (7.92 kg/cm) 131 oz-in (9.43 kg/cm) Length: 1.6" (41mm) Width: 0.8" (20mm) Height: 1.5" (38mm) Weight: 2.1oz (60g) Connector: Universal jxs 10/26/06 ir/jxs