Purpose: to develop and add size to the calves (the gastrocnemius, the deeper calve muscle).
Execution: Stand with your toes on the block of a standing calve raise machine, with your feet parallel to one another, and shoulder width apart. With your shoulder under the pads, and your legs straight (but not locked at the knees), lower your heels as far as possible towards the floor feeling the calves muscles stretch. From the bottom of the movement, come up onto your toes as far as possible, feeling the calve contract at the top of each rep.
Note: When you are too tired to complete the full repetition, finish off the set with a series of partial repetitions to increase the intensity of the exercise. Also, turn your toes out if you want to work the inside of your calves, and your toes in if you want to work the outside of your calves.