Tower Pro SG90

-Dimensions: 22.6 x 21.8 x 11.4mm 
-Weight: 9g
-Operating Speed (4.8V no load) : 0.12sec / 60 degrees 
-Stall Torque (4.8V): 10.2oz / in ( 1.98 kg/cm ) 
-Temperature Range: -30 to +60 Degree C
-Dead Band Width: 4usec
-Operation Voltage: 3.5 - 8.4Volts