Hard wax is the wax that doesn't require cloth strips. The wax itself is the strip. You microwave the wax until it becomes a gooey liquid. You spread the wax on your skin, wait for it to cool and harden and then you pull the strip of wax off. It's easy and way less messy than using strips. I use Nair Divine.

When I am done, the area feels as smooth as a baby's butt.