Suitable for Face Body: The 1pc Derma Roller are suitable for both women and men. Easy to Use: With the ergonomic handle, the derma roller is easy and comfortable to use.Save Time & Money: Say goodbye to the expensive salon experience, you can use our derma roller at your convenience at home.Perfect Gift: Its very convenient to carry with you on the go or travelling. The unique derma roller kit can be a great holiday gift for your family and friends.Using Instructions:Clean your hands and the part that needs to be cured.Use the cleansing and anti-bacterial gel to wipe your hand and skinUse hot water to flush the roller.You should use some skin care products before using.Using your other hand to straining your skin and rolling before and after over the part to be cured.Roll 8~10 times in every direction. Put enough pressure and make sure the micro-needle can penetrate your skin.After treatment, you should wash and dry up the rolled part.