Features 192 real individual surgical-grade stainless steel needles. It is designed to safely stimulate collagen production, reduce fine lines, and boost the absorption of active skincare serums by up to 80%. Key features of this product include: Real Individual Needles: Unlike stamped metal wheels, these are individually placed to ensure precise, even micro-punctures rather than tearing the skin. Enhanced Absorption: Helps your favorite anti-aging serums and treatments penetrate deeper for maximum efficacy. Ergonomic Design: Built with an anti-slip handle for optimal control and a smooth rolling motion. Hygiene & Storage: Each roller includes a protective travel case to keep the tool safe and sanitary between sessions.