1.Perfect for Home Use - The derma roller is easy to use to meet your different needs. This is a popular roller for anyone to use at home at anytime. 2.More Effective - The derma roller is easy to use and it is more effective than 0.25mm derma roller. You could use it with the convenience at home. 3.Portable Design - With the portable design, it is easy to hold and use. And you can conveniently carry it in your bag on vacation or at home. 4.Unique Gift - The derma roller is a great gift choice for your family and friends on Thanksgiving, Valentines Day, Mothers Day or Christmas. 5.Save Time & Money - The derma roller comes with a free storage case. Compared to going to the salon, it can help you save more time and money for home use.