These strips work by using a pre-applied layer of wax that sticks to the hair, not just to the surface of the skin. When you press the strip firmly onto clean skin and pull it off quickly against the direction of hair growth, the wax grips the hair close to the root and lifts it out. Because the hair is removed from the root rather than cut at skin level, the regrowth tends to look softer and the smooth result generally lasts noticeably longer than shaving.
This format is designed for legs and larger body areas. It is a ready-to-use option, so you do not need to heat wax, wait for it to cool to the right temperature, or apply it with a spatula. The even wax layer on each strip makes coverage predictable and the process less messy than using a jar of wax at home.
A practical advantage is that the strips can pick up short regrowth that a razor may struggle to cut. That makes them useful for touching up between waxing sessions or for people who have not let the hair grow for long. For best results, make sure the skin is clean, dry and free of oils or lotions before applying the strip.