China Markers also known as "grease pencils", it leaves opaque markings without skipping on all types of shiny surfaces including the following: glazed pottery, glass, plastic metal, rubber as well as porous surfaces such as fabric, wood, and paper.
· The markers are water resistant and colorfast, rain and sun should not affect them in normal use.
· It can be easily removed from non-porous finishes.
· Using the pull string easily exposes the paper wrapped core.