• Container size: 4 lbs
• Permanent Black marking chalk
• Designed for application on any porous surface such as wood
• Provides the highest level of permanence against: Rain, wind, and high traffic job sites
• Waterproof will not wash off even under heavy downpours
• Scuff proof
• Windproof
• Designed to be used in any chalk reel
• Snaps a clean solid line outperforming traditional chalk with less smudging
• Resists being blown away layouts can be done in windy conditions
• Easily washed away from hands and work clothing with mild soap & water
• Wet or dry application