Open Box MFJ-336S Tri-mag mount assembly SN55729.

Open Box MFJ-336S Tri-mag mount assembly SN55729. There is some scuffing on the bottom along with some small dings on the top.

"Goliath" Tri-Magnet Mount Assembly 

The MFJ-336S Goliath Tri-Magnet Mount has three super strong 5-inch magnets bolted to 1/4 inch triangular mount. It has 17 feet of RG-58 coax cable that terminates in a PL-259 connector. 
The MFJ-336S has a UHF (SO239) antenna base connector.
CAUTION: Once it's on, it's difficult to get it back off!