Cohas Liquid Chalk Marker Pack includes 5 Fine 1mm Tip Markers, Fluorescent Waterproof Colors Set of liquid chalk markers perfect for creating lettering and details on a variety of surfaces Includes 5 fluorescent waterproof markers with fine 1mm tips; ink removes with Windex or cleaner Marker colors included are White, Fluorescent Orange, Fluorescent Green, and Fluorescent Yellow Free Cohas 3-1/8 by 5-1/2-inch magnetic backed chalkboard inside; sticks to many steel surfaces Markers work on included magnetic board, glass, plastic, metal, and any selection of Cohas products