SkinPen Precision design provides additional safety and protection from cross contamination Skinpen Precision reverses the way the cartridge attaches to the pen, using a spindle to slot on the disposable pen head Old Style Pen and cartridge 3 pathways of cross contamination addressed: - cartridge head 100% sealed so no leaking - Ultra-sonically sealed base – watertight so no body fluids can enter - Bio-Sheath covers the entire device adds further protection 14 Japanese medical-grade needles sharp (not blunt or hooked) No grooves which may harbor bacteria 31-gauge needles minimize epidermal destruction