Each tensioner kit includes all the fittings necessary to anchor and tension a single cable end:
(1) Cable Bullet for metal posts
(1) Crimp sleeve
(1) Lobed washer
(1) #10-32 x 1/4" half dog socket set screw
(1) Rubber o-ring (pre-installed)
As the Bullet is advanced into the metal post, the o-ring acts as a cushion, so you can adjust the alignment of the set screw channel. Once set, the o-ring also serves as a lock washer, tensioning the Bullet to its preferred position.