This derma roller is a great product. It is well made and works exactly how it is supposed to work. I found it quite comfortable to use. It was painless and easy. Unfortunately I had to stop using it because it aggravated my rosacea….. But I highly recommend it for anyone who does not have rosacea! I knew it was a gamble when I ordered it and it is not the fault of the product, it is the fact that I have very persnickety skin.