The GTS Derma Roller features 192 titanium needles at 1.50mm length for professional microneedling treatments. This medical-grade tool is designed for deep skin penetration to stimulate collagen production and improve various skin concerns. As this is a medical/personal hygiene device with 1.50mm needle length, it should only be used by trained professionals in a clinical setting. The device comes in sterile packaging and includes the derma roller with 192 titanium needles. The gold and white design indicates professional-grade quality. Proper sterilization and careful handling is required before and after each use.