The right choice of silicone pad is crucial for the result of your eyelash lift. There is a simple formula that you can use to see which pad you should use. Hold the pad against your lash line and pull the lashes upwards with a lash comb. The lashes should cover 1/3 of the pad. As a general rule of thumb: S: strong lifting: short eyelashes M: medium lift: normal eyelashes L: light lifting: long eyelashes