This is the Futaba BLS451 Brushless Digital High Torque, High Speed Servo. Designed for any RC hobby application. This servo can produce high-current draw from your batteries. If using NiMH or LiPo batteries, make sure they are capable of delivering sufficient amps. FEATURES: Equipped with a Brushless motor that lasts longer and operates at a lower temperature than Brushed motors 30% Faster response times, smoother operation Samarium Cobalt magnets and dual ball bearings Same power consumption and centering as Digital servos equipped with Brushed motors Standard size Metal gears One-year warranty INCLUDES: Futaba BLS451 Brushless Digital High Torque, High Speed Servo with Universal connector REQUIRES: Installing in model and plugging into receiver If mounting hardware is needed, order FUTM2250-Mounting Screws FUTM3650-Brass Eyelets FUTM2346-Grommets SPECS: Torque: 4.8V: 118 oz-in, 6V: 147 oz-in Speed: 4.8V: .13 sec, 6V .10 sec Dimensions: 1.6 x 0.8 x 1.5" (40 x 20 x 37mm) Weight: 2.1oz (58g) jxs 6/25/07 ir/jxs updated jpg 2/14/08