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. Bistro Chalk Marker Fine Point Metallic 4-Piece Set includes 4 colors: Gold, Silver, Metallic Red, Metallic Blue.