KCJ-XH-30X Wide (30) Head Wide opening with innovative scraper and integrated tape-splitter - best for thicker substrates and multi-use All round cutting applications High quality carbon steel blade Replacement head for Kleen Xchange KCJ-XC-30X The active antimicrobial component is part of the formulation, so it won't wash off or wear away! This is not a coating or treatment - its and integral ingredient! ISO22196 Certified