This is a TS-59 Low Profile Aileron Servo from Tower Hobbies. FEATURES: Universal Connector Fits Futaba, Hitec, JR, KO Propo, Airtronics Z, and Tower Hobbies. One of the Shortest Proportional Servos Available High Torque for .60 size Models or .40 size Aerobatic Models Single Top Ball Bearing for Smooth, Precise Output Control Combination Metal/Resin Gear Train Provides Reliable Operation Watertight Surface Mount Technology (SMT) Allows this Servo to be More Reliable in High-Vibration Environments. INCLUDES: One TS-59J servo One Small X-Shaped Servo Horn One Small I-Shaped Servo Horn One Mounting Hardware Bag SPECS: Speed: .18 sec @ 60° (4.8V) .14 sec @ 60° (6V) Output Torque: 61 oz-in (4.8V) 77 oz-in (6V) Weight: 1.2oz (34g) Dimensions: 1.7"L x .9"W x 1"H (43 x 23 x 25mm) jak 10/21/98 ir/jl