Hultafors Ultra Blue Chalk has been optimised for outdoor use. It provides a strong, clear line that is extremely resistant to the effects of wind and rain. Contains dolomite and ultramarine.

Specification:

Size: 1000g.

The Hultafors Chalk Line Chalk is pigment-rich, so it produces clear and long-lasting lines. The chalk is finely milled and effectively attaches to the cord.