The ColorMe tool kit provides you with a great removal tool, a file which is great for prepping your nails, but also for filing away the top coat when you are going to remove your gel polish. The other file is great to use after removal, to polish the nails and give them their nice natural shine again.
No, gel polish will not harden without exposure to UV or LED lamp. These lamps are necessary to initiate the curing process, resulting in a hard and durable finish of the gel polish.