Just like the nail salon [SEP] Works just like ones in the nail salon. I am sooo happy to not have to go to the nail salon again.  Make sure you rub them down with alcohol after so they don't feel sticky.  I also suggest getting a gel polish starter kit with it so you have a base and top coat. I also found it works best if i buff my nail bed and wipe them down with polish remover first to remove oils and to have a rough surface to stick to.