Feature: 1. High‑quality plastic material, sturdy, anti‑corrsion, insure long durability. 2. The metal gear can withstand higher loads, guarantee the normal operation of the servo. 3. High efficiency, low noise and low power consumption during operation. 4. High accuracy, not easy to plan, dependable to use. Easy to install and disassemble. 5. Including 5pcs different servo arms in the package to meet your different needs. Specification: Condition: 100% Brand New Item Type: Gear Servo Material: Plastic + Metal Color: Black Model: S0900M Locked Torsion: 10kgf.cm at 4.8V; 14kgf.cm at 6V No-Load Speed: 0.21s/60° at 4.8V; 0.19s/60° at 6V Weight: Approx. 52g/1.8oz Dimension: Approx. 36.6 x 20.2 x 40.7mm/1.4 x 0.8 x 1.6in Working Voltage: 4.8V-6VDC Working Frequency: 1520μs / 333Hz Motor Type: DC Motor Gear Type: Metal Gear Bearing Type: 2BB If using a voltage regulator, please maintain the voltage at 4.8V-6VDC Compatible: Suitable for 1:8 1:10 high-speed car, fixed-wing ducted aircraft, etc.. Package List: 1 x Metal Gear Servo5 x Servo Arms5 x Screws8 x Accessories Note: 1. Manual measurement, allow 1‑3mm error, thank you!2. Due to the difference between different monitors, the picture may not reflect the actual color of the item.