Kassa chalk markers allow you to write or draw with bold, vibrant colors on almost any surface! The liquid chalk markers will erase off non-porous surfaces like black boards, windows, mirrors, and glass. This bundle includes 5 chalk markers with assorted tip sizes from ultra thin 1mm, fine tip 3mm, 6mm, large 10 mm, & jumbo 15 mm markers. The erasable chalkboard markers are widely used for chalk lettering, creating wedding signs, restaurant menu boards, home decor signs, milestone boards and so much more! The marker pens are perfect for kids, aspiring artists, craft lovers, and DIY enthusiasts.