The Stanley Tools Chalk Refill in Blue is a versatile 225g chalk refill that serves as an ideal all-round solution for both interior and exterior marking applications. This blue chalk variant provides excellent visibility on most surfaces whilst remaining removable when needed, making it the perfect choice for temporary marking lines during construction, carpentry, and general building work. The high-grade chalk is specifically formulated for use with chalk line reels, ensuring consistent line quality and minimal dust. Packaged in Stanley's distinctive square bottle design, it won't roll off your workbench or scaffolding, whilst the twist-to-open spout allows for easy, controlled pouring when refilling your chalk line. Features and Benefits:Blue chalk ideal for versatile interior and exterior use225g bottle provides extended coverageHigh-grade formulation for clear, consistent linesSquare bottle prevents rolling on work surfacesEasy-pouring spout for mess-free refilling