Use fine point Bistro Chalk Markers on chalkboards, light boards, dry erase surfaces, windows and windshields. A wonderful way to create chalkboard art to attract attention and increase sales.They are opaque, water based, pigmented, erasable with a damp cloth. "NO FRILLS PACKAGING"....This set of markers comes in bulk and repackaged. *Please Note : These liquid chalk markers are to be used on NON-POROUS surfaces ONLY! If using these on a chalkboard, be sure that it is 100% non-porous. **Colors included are : Pastel Peach, Peppermint, Blush Pink, Pale Violet and a 2.75" colorful fridge magnet is 30 mil thick and is proudly MADE right here IN the USA.