Westcott - ACM14381 Ruler contains an antimicrobial agent to help inhibit the growth of bacterial stains and odors. Transparent design allows you to view the page for easy measuring. Durable construction is flexible to help prevent shattering and ensure long-lasting use. Hang-up hole allows you to conveniently hang this ruler in an easy-to-access location between uses. Ruler is perfect for use in the home, school, shop or office.