B100 Braided Nylon Chalk Line 100m
is no longer available although you may find similar or newer versions below:
For use with powdered chalk for marking between two points to give a straight line.
Braided line resists fraying and is also useful for a plumb line as it does not spin round as a conventional twisted cord.
Braided nylon has less stretch than other lines and is also the strongest.
100 metre spool.