Attention-grabbing fluorescent colors join forces with liquid chalk to create these unique markers. Their fine tips make them perfect for your dry erase products, as well as all chalkboards and non-porous surfaces. Perfect for holiday decorations, and can be used on the non-porous surfaces, windows, black & white boards and mirrors. This product is Good for ages 3 and up. It is child friendly, non-toxic and odorless. Package includes (2) fluorescent Markers (Green & Blue).