SG90 Analog 180 Degree Rotation Micro Servo It equips Carbon Fiber Gears which makes the servo motor much lighter than same metal gear motor. For small load applications using the metal gear servo motor adds on unnecessary weight, so we suggest using this lightweight plastic gear servo motors. The TowerPro SG90 180 Degree Rotation Servo Motor rotates 90 in each direction making it 180 servo motor. They are packed within a tight sturdy plastic case which makes them water and dust resistant which is a very useful feature in RC planes, Boats, and RC Monster Trucks etc. It equips 3-wire JR servo plug which is compatible with Futaba connectors too. Wire Description RED Positive Brown Negative Orange Signal Specifications: - Weight: 9g - Dimension: 22mm x 11.5mm x 22.5mm - Stall torque: 1.8kg/cm(4.8v) - Gear type: POM gear set - Operating speed: 0.1sec/60degree(4.8v) - Operating voltage: 4.8v - Temperature range: 0_ 55 - Dead band width: 1us - Power Supply: Through External Adapter - servo wire length: 25 cm Package Includes : 1 x SG90 9g Mini Servo Motor with Cable 1 x Set of Horns 1 x Set of Screws *Please note, this is copy of the TowerPro Brand. *Original TowerPro has very high price which is impossible to sell at low price point. *Most other stores that claims theirs are original is wrong.