8colors Chalk Markers: Max 10mm 8-Color liquid chalk marker set with Reversible Tip(fine tip & chisel tip) , making your writing more vivid and colorful. Widely used & Easy to clean : These liquid window chalk pens are perfect works on any non-porous surface, like blackboards, glass, metal, ceramic, stone, so it widely used in bistro menu boards, cafe menus, Restaurant lunch menu, wedding sign, car window. Easy to Erase: Window chalk Marker can be erased easily by wiping the area with a damp cloth or paper towel on non-porous surface , such as chalkboard, chalk labels, glass, window, and other matte finishes(ERASABLE ON NON-POROUS SURFACE ONLY!) Non-Toxic, Mess-Free Chalk Marker: These chalk board markers for chalkboard erasable, dustless, non-toxic and safe to use, widely used by children, families, teachers, Restaurant owner and craft lovers to make creating beautiful messages with our liquid chalkboard markers .