These Dixon Phano China Markers (aka Grease Pencils) are commonly used to mark glass, metal, and other non-porous objects, but can be used like crayons on paper surfaces too. These china markers are used to make focus marks on focus rings. Peel-Away model grease pencil.
WARNING: This product may expose you to chemicals which are known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.
