6M 400G Apeak Line Magnetic Plumb Setter Leveling Test Device Measuring Tool

Braided nylon line extends and holds at lengths up to 6?Meter retracts into case automatically. Unique plumb features a quick?stabilizing cap that reduces wobble and spin. When installing the test keep distance from wall draw down the plumb measure out distance from two ends to wall then can judge if it is vertical. Using the plumb freely (weight from 200g- 400g) the plumb will keep balance automatically in seconds.