Heavy-duty Girder Profile level.

The designer angle finder level is quick and easy to use.
Its angle finding vial rotates fully through 360 degrees, with a constant pressure spring for easy adjustment.
Ideal for fast setting or falls on drainpipes, paving and roofing.
This level has an accuracy of 1mm per 1m. (0.057 in standard position).

Size 24in/600mm.