Derma Roller Pen .25mm is a disposable, reusable, highly-effective derma roller that can treat and soothe many different skin problems. Derma rolling is a safe and painless way to eliminate scars, age spots, and stretch marks. It can also improve skin texture and reveal smooth new skin after an exfoliation treatment. Derma Rolling is a simple procedure to perform at home with no down time or downtime required. Its small size is perfect for travel in your carry-on luggage or purse to use on the go!