These are color chalks that can be washed away with water, designed to be used on asphalt. Originally, there were 20 chalks in 7 colors, but I'm selling the remaining 9 because I no longer play with them. ⚠︎The case in the 4th photo is not included. ⚠︎The green chalk is broken. Please be aware of this. ⚠︎Please purchase with the understanding that these are stored at home and are used items.