LINDURAY Microneedle Derma Roller is rated best for beginners. The needle length is 0.25mm. Safe for home use. The premium derma roller needling design is carefully constructed to make sure you get the best results possible. It takes as little as 60 seconds to use and will help you reach your goals fast. KEY FEATURES: Safe and Painless - 0.25mm microdermabrasion needles are easy to use and don't hurt. Superior Quality - Made with durable 540 pure grade titanium microneedles ensured to last longer. Ergonomic Handle - Allows for ease and comfort while rolling across the skin. Anti Slip Grip - Provides stability and control. New In Shrink-wrapped Box.