This is the Hitec HS-5245 Metal Gear Ball Bearing Digital Super Torque Mini Servo with the Universal Futaba J, Hitec S, JR and Airtronics Z Connector. Suitable for small medium and sport planes, gliders, .30 size helicopters, and cars. Dual ball bearings. Digital and MOSFET amp programmable (see COMMENTS). Indirect drive potentiometer for long life. Narrow dead band width and high standing torque. One Hitec HS-5245 Metal Gear Ball Bearing Digital Super Torque Mini Servo with the Universal with, four rubber grommets, four eyelets, one star shaped, one arm, and two arm straight nylon servo horns, one aluminum servo horn. Installing on model, attaching linkages, and connecting to receiver. Wire color codes: Black-Ground, Red-Power, Yellow-Signal Operating speed: 0.15 sec @ 60° at 4.8V Torque: 61 oz-in (4.4 kg-cm) Weight: 1.12oz (32g) Length: 1.27" (32.4mm) Width: 0.66" (16.8mm) Height: 1.21" (30.8mm) Wire length: 12" (305mm) approximate In order to program the Fail-Safe on this servo, modeler will need to purchase the Hitec Field Programmer. JXS 7/12/02 ir/kh updt jxs 8/17/04 updt jxs 2/13/05 &