This Bahco chalk line set contains the following:

Chalk line (30 metres);
Blue chalk (227g)
Line level.

This Bahco chalk line has a long line of mixed orange nylon and cotton. It has a breaking strain of 16kg and a high chalk retention in the cotton. It can hold 50g of chalk, allowing a long life between refills and has a 3x faster rewind speed compared to other chalk lines. In addition, it features a claw and hook end, and an integrated belt clip. The specially shaped end means the line can be supported, allowing it be used as a plumb bob.