Du-Bro 2135 Swivel Ball Link With Hardware, 2-56 x 1/2 (2-Pack)

These really help to prevent binding and excess friction in tricky control linkages. Connecting a servo with a horizontally mounted control arm to a vertically mounted control horn is a good example as the alignment changes constantly as the servo moves from one extreme to another.

Typical Dubro quality. Use these to keep binding down.

as advertised. right size and quantity. I don't love the push on retainer collar but at this small scale I guess that is all we deserve

Use these on all my airplanes

great product,, rugged, no slop and great service, speedy delivery a+