Stanley 1-47-403 Blue Chalk Refill 115g The Stanley 1-47-403 is a 115 gram blue powder chalk refill for chalk lines. This all-round colour is suitable for both interior and exterior use, with good resistance to all atmospheric conditions (water-resistant). It comes supplied in an easy pour, refillable bottle. Features: Blue: all-round colour for interior and exterior use Good resistance to all atmospheric conditions Powder specially formulated for good adhesion and high visibility Water-resistant Specification: Colour: Blue Contents: 115g