PrevaGuard™ products contain an antimicrobial additive that is molded directly into the pen's plastic components and should last the lifetime of the pen unless the plastic is destroyed. This helps protect the pen by suppressing the growth of bacteria, molds, mildew and fungi, especially in high-moisture environments. PrevaGuard is a registered trademark of Koozie Group. Pen Sub-Brand & Product Family: PrevaGuard™; Pen Type: Ballpoint Pen; Pen Style: Retractable; Pen Tip Type: Conical.