Cable tricep extensions are a strength training exercise that targets the triceps, the muscles located at the back of the upper arm. This exercise is performed using a cable machine, which provides constant tension throughout the movement. To execute the exercise, you typically stand facing the machine, grasp the cable handle with both hands, and extend your arms downward while keeping your elbows close to your body. This exercise can be performed in various positions, such as standing or seated, and can be modified using different attachments like a rope or straight bar. Cable tricep extensions help improve muscle strength and definition, making them a popular choice for those looking to enhance their upper body workouts.