Zipper closure protects badge from moisture and dirt as well as ensures contents stay inside Ideal for use by electronic manufacturers working with static sensitive components Highly visible with yellow header and ESD Symbol allowing people to immediately know the Badge Holder has ESD control properties: low charging and dissipative Rtt: 10E6 to 10E10 ohms per ANSI/ESD S11.11 Tribocharging: Less than 100 volts Includes inner anti-print, non-ESD vinyl liner which will prevent ink transfer from your document to the document holder Made with a custom dissipative material made exclusively for Desco Industries and not available anywhere else! Genuine Made in the United States of America – accept no substitutesThis item is made and stocked in Chino, CA. Available in horizontal and vertical and we can do Customs just let us know your insert size!