WD-40® Multi-Use Product Original WD-40 Multi-Use Product protects metal from rust and corrosion, penetrates stuck parts, displaces moisture and lubricates almost anything. Its permanently attached Smart Straw Sprays 2 Ways. Smart Straw Sprays 2 Ways Flip up for stream, down for spray 50-state VOC compliant Content: 420 ml Quantity: One Aerosol