Master Markers with On/Off Magnet, 8"- 48" Pipe, Rust/Corrosion/Moisture Resist

Features newest on/off magnet technology | Unique design allows you to telescope out over existing welds to layout angles or change the angles of pipe fittings | Designed to accommodate 8 in to 48 in beams or 48 in structural beams | Contains 360° rotating shaf