The Drs Derma Roller System Features A 0.25Mm Needle Length, Designed To Stimulate Collagen Production And Enhance Skin Rejuvenation. Ideal For Improving Skin Texture, Reducing Fine Lines, And Enhancing Serum Absorption, This User-Friendly Tool Provides A Gentle Yet Effective Solution For A Youthful, Radiant Complexion. Safe For All Skin Types.