This is a large, small end servo saver from Kimbrough, designed to
work with all brands of servos. This servo saver comes with a small tree
with three different splines on it for adapting the servo saver to work
with KO, Airtronics, JR, Futaba, Thunder Tiger and Hitec servos.
Kimbrough makes some of the best servo horns in the business, and their
servo savers are second to none! If you have a high stress application
where you do not have an existing servo saver, you can use this servo
saver to protect the gear of the servo during hard crashes.