Information This is the Futaba S3003 Standard Servo, which is is used for cars, boats, or where standard servos are used.This is the replacement for the following servos, S138,S148,S22,S38 and S12.It can produce high-current draw from your batteries if using NiMH or LiPo, make sure they are capable of delivering sufficient amps. Includes: One S3003 standard servo with preinstalled round servo horn FUTM0031 Four eyelets Four Black rectangular rubber grommets (FUTM2348) Four servo mount screws One servo wheel 1-3/8" (35mm) in diameter One X-shape servo arm 1.5" (38mm) across One star shaped arm 1-1/4" (32mm) across Nylon gears Specs and Features: Speed: 0.23 sec/60 Degree @ 4.8V , 0.19 sec/60 Degree @ 6V Torque: 44 oz-in (3.2 kg-cm) @ 4.8V 57 oz-in (4.1 kg-cm) @ 6V Dimensions: 1.6" x 0.8 x 1.4" (40 x 20 x 36mm) Weight: 1.3oz (1-5/16oz) (37g) Connector: "J" type with approx. 5" lead