• Called plumb bob, or plummet, works as a vertical reference line, or plumb-line
• Used with a variety of instruments (including levels, theodolites, and steel tapes)
• To set the instrument exactly over a fixed survey marker or to transcribe positions onto the ground for placing a marker
• 6-Meter long string & 14 . bob, fits most use; Elastomer-wrapped setter for easy grip
• Steel reinforced pin for use with a hammer for overhead setting

1 Piece Plumb Bob