Use these bistro chalk markers on seasoned chalkboards, light boards, dry erase boards, mirrors, windows, windshields and most non porous surfaces. These chalk markers are a great way to add bright colors to your chalk creations. They erase easily from most non-porous surfaces with a damp cloth. Colors in the set include fluorescent blue, fluorescent green, fluorescent yellow and fluorescent pink.Details:Includes assorted colors3mm fine tip point4 markersWater basedErasable with damp cloth