As the information and the picture below:
Weight:62g
Torque:(4.8v)18KG / 6.6v 20kg
Rotational speed:0.2sec/60deg
 A:47.8mm
 B:40mm
 C:42mm
 D:20mm
 E:54.2mm
 F:30mm



Description:
Brand:Towerpro
Item:MG958 High Torque Servo
Weight: 55g
Actuator Type: digital servos
Servo size: 40.7 × 19.7 × 42.9mm
Servo wire length: 32cm
Rotational speed: 0.18sec / 60degree (4.8v); 0.15sec / 60degree (6.0v)
Operating voltage: 4.8 ~ 6.0v
Stall Torque (4.8v): 18.0kg.cm
Stall Torque (6.6v): 20.0kg.cm
Servo case: Alloy case in the middle
Gear Material: Metal & Aluminum 6061-T6
Rudder housing: intermediate aluminum shell
Ball Bearing: Dual ball bearing
Temperature range: 0- 55 ¿
Plug Type: Import JR FUTABA General
Deadband setting: 1us
Servo Cable length: 32cm
Certificate: CE & RoHS
Usage:For 50 -90 grade methanol fixed-wing aircraft, RC airplane, 26cc-50cc gasoline, 1:10 and 1: 8 level sports car, SUV, truck, monster truck, climbing car, RC boat,and other models.