MFJ-336T
Tri-Magnet Mount

The MFJ-336T Goliath Tri-Magnet Mount has three super strong 5-inch magnets bolted to 1/4 inch triangular mount. It has 17 feet of coax cable to a PL259. The MFJ-336T has a 3/8"x24 connector.
CAUTION:  Once its on, its difficult to get it back off!