With the Facom DELA.3224.00 engineers plumb bob, you quickly and reliably establish an accurate vertical reference line on the job. Thanks to its 125 g weight and compact 16 mm diameter, you achieve precise plumb measurements even in confined spaces. The included 4 m line with a 2 mm diameter provides ample reach for aligning and checking structures, frames, and partition walls straight out of the box. You work completely independent of batteries, relying on dependable gravity-based measurement.