Use Metallic Bistro Chalk Markers on seasoned chalkboards, light boards, dry erase boards, mirrors, windows, windshields and most non porous surfaces. These Metallic Chalk Markers are a great way to add metallic colors to your chalk creations. These great markers are opaque, water based, pigmented and erasable with a damp cloth. Each pack includes 4 markers: gold, silver, metallic red and metallic blue.