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 percent washable so any chalk creations disappear effortlessly with water or rain. Sturdy sticks resist breaking; non toxic and safe for ages 4 and up.