Compared to traditional gel polishes, no primer/topcoat is used, this saves both money and time, but the stunning color stays the same and is full of pure color. This One Step Nail Gel Pen is easy to color, very easy to use and saves a lot of time. It does not crack, does not turn yellow, does not fall off and is easy to remove. OUR GUARANTEE We are confident that we offer some of the best products on the market. Therefore, we provide a 30-day guarantee. We will make every effort to ensure that you are completely satisfied with your purchase. Online shopping can seem daunting. We want you to know that there is absolutely zero risk of purchasing something. We won't make it difficult if you don't love it. We offer email and ticket support 24 hours a day, 7 days a week. If you require assistance, please contact us. Please contact customer service if you have any problems with your purchase.