Testors Spray Chalk easily turns outside surfaces into playing fields, games, signs, or outdoor masterpieces. Instantly turns to powder as it comes out of the can. Spray on grass, asphalt, snow, and more. Pet and vegetation friendly formula dissolves naturally in the rain. 30 minute dry time. Color fades to white in 7 days or washes away with water. Non-toxic. Sprays up to 80 linear feet. Set includes: (4) 6 Oz. cans - pink, blue, yellow, and white. Outdoor use.