The Redline Waterproof Chalk Red 8 oz. is a premium chalk line refill designed to produce bold, long-lasting layout lines that resist moisture and weather. Its waterproof formula provides excellent adhesion on a variety of construction surfaces, making it ideal for outdoor projects and demanding jobsite conditions.

• 8 oz. bottle of waterproof red chalk
• Produces bold, highly visible layout lines
• Waterproof formula resists rain and moisture