ChrisNik 23MAG-HUB4 3/16 x 4 Inch MAG HUBS
The MAG HUB is magnetized for easy detection and galivanized coating to resist corrosion. It has a large center point and looks like a standard survey marker. The MAG HUB is less than half the price of a stake and is easy to carry.
Not made to be driven in concrete or asphalt.​