Panavise 864 CCTV Magnet Base (Black)<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Magnet holds up to 5 lbs. (2.3kg) in a vertical pull. Base is 2.75-Inch (69.8mm) in diameter and 0.385-Inch (9.8mm) thick</li><li>0.25-Inch 20 mounting stud</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31XE-1aT2IL.jpg" noproxy>