Feature 1Retrofit Tool: Retrofit and upgrade digital servo with nice performance, suitable for remote control of cars and robots. You can use it to enhance the performance. 2Excellent Performance: Our products have accuracy gears, more wearproof, not easy to collapse and sweep teeth. Improve the daily use experience. 3Kit Includes: Includes servo accessory kit, spare gear and shaft pin, 25t metal servo arm. Can help you better modify your remote control car. 4Ideal Choice: This is a ideal choice for university professors and students interested in developing software for robot parts. Tailored for RC enthusiasts, offering different experiences and fun. 5Waterproof Design: Maintain nice water tightness under wet conditions, avoid making the machine difficult to run because of water, and reduce the use of trouble for you.Item Type:Brushless Digital ServosWeight: 156g/5.5ozShell Material: aluminum alloyColor: BlackSteering Gear Size: 55 x 20 x 48mm/2.2 x 0.8 x 1.9inOperating Voltage: DC 6-7.4VNeutral Position: 1500s/330hzDead Zone: 2s6V Working Speed: 0.12 seconds /60 degree6V Locked Rotor Torque: 60kg/132.3lb7.4V Working Speed: 0.1sec /60degree7.4V Locked Rotor Torque: 70kg/154.3lbApplicable: 1/10 1/8 RC model car .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 xDigitalServo1 x Aluminum Steering Gear Arm2 x Gear2 x Latch2 x Plastic Steering Gear Arm6 x Screw4 x Screw Cylinder4 x Shock Absorbing Pad1 x Storage Box