Tram 2692 Tri-Magnet Mount has three super strong 5-inch magnets bolted to 1/4 inch-thick triangular mount. It has 17 feet of coax cable. CAUTION: Once it's on, it's difficult to get it back off! The Tram 2692 has a 3/8" connector.
Chrome-plated steel magnet housing
Soft rubber boots on magnets for scratch-resistance