Aervoe 217 Orange Spray Chalk Safe for use on turf surfaces Non-resin binders and low pigment solids hold chalk together in a slurry as mark dries Use as a temporary mark on private property where limited exposure is desired Easy clean up with soap and water within 10 minutes of application Designed to be used in Aervoe's #244 Spot Marker, #245 Marking Stick, or by hand