Nice compact servo at a very affordable price, these are your entry level servos but don't under estimate what they are capable of.
- Weight: 9g
- No-load speed: 0.12 seconds / 60 degrees (4.8V)
- Stall torque of 1.2 - 1.4 kg / cm (4.8V)
- Operating temperature: -30 to +60 degrees Celsius
- Dead-set: 7 microseconds
- Operating voltage: 4.8V-6V
Take a look at the following link for some more info on Servo motors: Link