Testors Spray Chalk instantly sprays on the fun! Create games or release your inner artist with these bright, spray-on chalk aerosols. Goes places and on surfaces where regular sidewalk chalk can't! Use on grass, asphalt, concrete, sand and much, much more. Spray, play and let it wash away! Non-toxic formula is safe for people, plants and pets, making it fun for the whole family. Use to instantly create art or games during any season - even winter.