From driveway mosaics and educational games to tallying scores, chalk draws the entire family outside (literally) for some good fun and fresh air. White chalk works on multiple surfaces: outdoors on pavement, sidewalks, driveways and indoors on chalkboards, construction paper (especially black), and more! 100% washable so any chalk creations disappear effortlessly with water or rain. Sturdy sticks resist breaking; non-toxic and safe for ages 4 and up.