This is the Futaba S9402 Hi-Speed Coreless Ball Bearing High-Torque Servo. Great for 1/10 scale Cars (see COMMENTS), Boats, Airplanes and Helicopters. 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: Hi-Torque Coreless Motor Two Ball Bearings Metal Gears (brass and steel) Dust and Water Resistant Plated "J" type Connector (Gold colored) One-Year Warranty SPECS: Size: 1.6 x 0.8 x 1.5" (1-5/8 x 13/16 x 1-1/2") (41 x 20 x 38mm) Weight: 1.9oz (1-15/16oz) (55 grams) Torque: 89 oz-in @ 4.8V - 111 oz-in @ 6V (6.4 kg-cm @ 4.8V - 8.0 kg-cm @ 6V) Transit time: .12 sec/60° @ 4.8V - .10 sec/60° @ 6V Connector: "J" type with about 10" lead INCLUDES: One S9402 servo Four Black rubber rectangular grommets Four brass eyelets Four servo mounting self-tapping screws (#4x1/2") Three black plastic servo horns (arms) 1- circular 1- "X" 1- "6-arm" COMMENTS: Do not use with 1/8 scale vehicles. Use a servo with higher torque such as the S9350 (FUTM0235) or the S9351 (FUTM0236). AXY 12/13/95 ir/jl updt jxs 10/30/03 updt jxs 10/29/04 updt jxs 9/26/05