Description:    Compatible with the Futaba S.Bus System Servo can be easily programmed with the SBC-1 Channel Setting Tool, S.Bus receiver or PCLink software Equipped with metal gears Also compatible with Futaba receivers and transmitters manufactured after 1982 INCLUDES: Futaba S9075SB Serial Bus Digital High Torque Servo, 0.83" (21mm) round servo horn, 1.8" (45mm) round servo horn, 1.5" (38.5mm) four point horn, 1.2" (32mm) six point horn, four rubber grommets, four metal eyelets, four mounting screws and instruction sheet REQUIRES: Programming, installing in model and connecting linkage Specs and Features Dimensions: 1.59 x 0.83 x 1.47" (1-5/8 x 13/16 x 1-1/2"),(41 x 21 x 38mm) Torque: 425 oz-in (31 kg-cm) at 6.0V Speed: 0.14 sec/60 Degree at 6.0V Weight: 2.5oz (71g)