Stanley FatMax Xtreme Waterproof Chalk is designed to eliminate clumping in wet conditions, ensuring that your lines remain clear and precise. This high-quality chalk snaps longer-lasting lines on both dry and wet surfaces, making it an essential tool for any professional. The flat finish chalk is versatile and can mark on a variety of surfaces including brick, concrete, blacktop, metal, and rough or uneven surfaces.

With its waterproof properties, this chalk will not wash off in inclement weather, providing you with reliable performance in any condition. The square bottle design ensures that it will not roll off work surfaces, adding convenience to your tasks. Available in a permanent marking black color, this chalk is a must-have for any demanding job site.

Features

• Eliminates clumping in wet conditions
• Marks on various surfaces
• Waterproof and permanent