One does the cable overhead triceps extension on a pulley machine and hits all three triceps heads, particularly the long head.
Triceps
The single-arm variation of the triceps dumbbell kickback isolates, builds, and strengthens this particular arm muscle.
The cable rope pushdown utilises a different angle to the bar, so you can activate greater muscle contractions in the tricep with lighter resistance
The cable V-bar pushdown is a great alternative for your triceps. The angled bar allows you to lift heavier weights than a straight bar or rope.