- Ox - the leading model of rugged blue chalk line
- Heavy duty casing with rubber moldings for construction sites
- A 6:1 gear ratio for faster rewind than previous models
- Chalk line length of 30 metres (100 feet) - chalk lines can join together.
- Twisted polyester string for strength and durability.
- Ideal for all marking out tasks with spare chalk also available.
- Please see a chalk line video demonstration here.