Safe material: Our derma roller is made with safe and harmless material.No side effect on human body. Efficacy and safe and reliable, simple operation, non-invasive.It can promote blood circulation and make your skin tighten, elastic.Effectively improve scar,acne, , stretch marks,etc.Get Glorious: Skin turnover is a key With our 540 Microneedle,Making your body think there is damage so it makes new collagen and skin cells Micro needle roller for face - simple way to rejuvenate your skinSimply & Painless: This micro needle roller has 0.25/0.5/0.75/1.0/1.5MM length to meet most customer request. Safest and most effective. It can promotes skin metabolism, maintains skin elasticity, activates cells, ,repairs damaged tissues, whitens, strengthens cellular immunity, delays skin aging, and maintains youthfulness for a long time.NO more Red Face: Unlike salon treatments that can be on rough side - this micro derma is designed for home use and leaves you feeling and looking great in the morning No other derma roller comes closeMicro roller for face: Effective & safe Micro needle dermal roller.The anti-aging tool.The tool every lady needBest gift for wife, girlfriend and female friend.Specifications:Material: Stainless steelsNeedles count: 540 needlesSize: 0.25mm,0.5mm,0.75mm,1.0mm,1.5mmTarget: FacePackage included:1 x Micro-NeedleSkinRollerNote:1. Due to the different monitor and lighting effect, the actual color of the item may be slightly different from the color shown on the pictures.2. Please allow 1-3cm error due to manual measurement. (1 inch = 2.54 cm)Thanks for your support :)"