Single Arm Cable Extension
Cable extension is a great exercise for triceps, and there are a number of variations, using either rope, bar, or handles. In this variation, you're using a handle to work each side separately. This allows you a greater contraction as you extend your arm to the side, with an option to use your other hand to stabilise your upper body. Lock your upper body, elbow tucked in. Extend the arm to the side, hinging only at the elbow. Extend and squeeze at the top of the movement.