The SCS Labels are easy to use and provide the ANSI/ESD S8.1 ESD susceptibility symbol (the same symbol as JEDEC 14) and warning message to warn that ESD control precautions are needed when opening package and handling contents. These permanent adhesive destructible type labels are "tamper evident", letting you easily monitor whether or not a package has been opened. - Use Label on bags, boxes and totes to ensure proper ESD warning. The 1-7/8 Inch x 2-1/2 Inch label displays the ESD susceptibility reaching hand symbol and provides writing space, the 5/8 ft by 2 Inch, 5/8 Inch x 2 Inch label displays the ESD susceptibility reaching hand symbol.