15 - Don't "stick" with what you know, choose a sticky microfiber cloth. The silicon back is easy to peel off, clean and re-stick back on the phone or other electronic device. Sticky cloths are made with woven microfiber cloth which can safely clean most sensitive surfaces; smart phone screens, camera lenses and glasses. The silicon sticky back is reusable and if dirty clean with water and it'll be sticky again. We can custom make any shape or size!