Never troubles again with having to install new gears in servo's. Also no backlash on the gears with these high quality metal gear servos from Tower Pro: the standard digital servos from Esky have a little backlash on the gears. See the product(film about the servo tester) for a comparison. For only 20 grams more (15 grams more if you already use SG91) you also get twice as strong servos.
With this package, you receive: