Large Caution Label P/N: CLABEL4X4 Great for boxes and assemblies, this large 4"x 4" inch adhesive label displays warning message and 'arrows' symbol. These labels are easy to use and provide the ESD symbol and warning message needed to complete your protective package. These destructible type labels are "tamper evident", letting you easily monitor whether or not a bag has been opened. Use label on bags, boxes and totes to ensure proper ESD warning.