In Japan - these are used for applying 'weekend nails'.

They are pads made of double-sided strong adhesive tape with a gel pad. The gel surface adheres to artificial nails, while the double-sided tape sticks to your natural nails.

Each pack contains 3 sheets with 24 stickers per sheet.

These handy stickers can be removed neatly without damaging either your nail or your nail tip so that can can wear temporary artificial nails whenever you want!