0.5mm Roller For Skin Maintenance And Skin Care Against Scars (Including Acne， Pimple) ， Blemishes & Slender Lines. Can Be Used For Cosmetic Application And To Treat Hair Loss Through Regrowth And Regeneration， 540 Titanium Diamond Shaped Needles For Deeper Penetration， 9 Disks x 60 Needles (540 Needles Total)- Durable Handle- Long Lasting， CE Approved- Clinically Proven To Work- Affordable & Effective.