Click action pen with stylus tip Colored barrels with silver Accent Complies with JIS Z 2801 2010 Specification for antimicrobial activitya and efficacy of antimicrobial products White barrels with color accents Manufactured with an Antimicrobial andor antibacterial additive which fights bacteria growth on the products surface Neutralizes over 99 of active bacteria on products surface Additive does not wear off and remains effective for the life of the product