They cling to *any smooth flat steel surface: file cabinets, steel white boards, chalkboards, doors, safes, files, cabinets, equipment, etc. Black on one side, white on reverse side. .095" thick.
* Except some grades of stainless steel
If you are looking for specific words, or other shapes, please contact us at 800 624 4154 and work with one of our system specialists to have your words printed on your chosen colors.