1、It is made of high‑quality plastic and metal, and has undergone precise processing to ensure durability. 2、Fast heat dissipation, high torque compatibility, and highly sensitive torque compatibility. 3、Multiple waterproof design, double ball bearings, high‑precision gears, high noise, low rotation and stable rotation. 4、The surface is anodized, which helps the motor to dissipate heat, improves the strength of the servo housing, and has an elegant appearance. 5、There are 5 different steering gear arms in the package, which can meet your different needs. Item Type: RC Servo Material: Metal + Plastic Color: Black Size: Approx. 40.5x40x20mm/1.59x1.57x0.79in Weight: Approx. 83.0g/2.9oz Model: DS3225MG Torque (5V): 21 kg/cm Torque (6.8V): 25 kg/cm Speed: 0.15 seconds / 60° (5V) / 0.13 seconds / 60° (6.8V) Reduction Ratio: 310:1 Servo Blade Specifications: 25T/ψ5.80 Gear Ratio: 275 Pulse Width Range: 500-2500 μsec Working Frequency: 50-330Hz Neutral Position: 1500μs Controllable Angle: 180° Angle: 90° Dead Zone: 3μs Drive Mode: PWM Suitable Motor Type: DC Motor Suitable Gear Types: Copper and Aluminum Wiring: Red = Positive / Black and Brown = Negative / Yellow and White = Signal Wire Fitment: Fit for 1/8 RC CarFit for 1/10 RC Car Fit for 1/12 RC Car 1 x RC Servo 5 x Servo Arm 6 x Screw 4 x Sealing Ring 4 x Accessory