The Stanley Chalk Line Refill in Red is specifically formulated for external masonry work, providing an indelible marking solution that won't fade or wash away easily. This high-grade red chalk is the professional's choice for outdoor construction projects where permanent, highly visible marking lines are essential. Supplied in a 113g square bottle, this refill features Stanley's anti-roll design that keeps the bottle stable on work surfaces, preventing wasteful spills and improving site safety. The twist-to-open spout enables precise, controlled pouring when refilling your chalk line reel, ensuring you can work efficiently without interruption. The indelible nature of this red chalk makes it particularly suitable for brickwork, blockwork, and concrete marking where lines need to remain visible throughout the construction process, even in challenging weather conditions. Its bold red colour provides excellent contrast against most masonry surfaces. Features and Benefits:Red chalk ide