Here is the servo out of my centro, its a little over 7 months old and in perfect working order, the wires have been shortened as std they are a little long

Comes with original box etc £45 rrp grab a bargain!
Specs;
Dimensions: 40.8 x 20.2 x 25.4mm
Weight: 44.5g
Speed (sec/60°): 0.1 @4.8V, 0.09 @6.0V
Torque (kg-cm): 7.0 @4.8V, 9.0 @6.0V
Gear: Titanium & Aluminium
Case: Aluminium
£25 posted 1st class recorded delivery
thanks
dave