How can I avoid air bubbles under the press-ons?

If you use adhesive stickers, make sure you apply them carefully to the natural nail: Always apply the stickers to the nail with protective foil and then remove all air bubbles with a light brush. This works particularly well with the enclosed rosewood stick. Once you have done this, remove the protective film and press the press-ons firmly onto the natural nail.

If you prefer to use nail glue, always apply a sufficient amount to the adhesive surface of the press-ons to completely fill the "cavity" between your natural nail and the press-on nail. You can also apply a thin layer of nail glue to your natural nail.