The Triple Magnet Mount can be used to securely attach a prism pole or GPS/GNSS antenna to any ferrous-metal surface. With a GPS Quick Disconnect Adapter (sold separately) you can remove your accessories with the simple push of a button. With a Quick-Release Adapter (sold separately) you can quickly and easily set up a reflecting laser target. This magnetic mount has a 5/8 x 11 male thread, so any compatible accessory can be solidly mounted with no hassle or inconvenience. This magnetic mounting system has 3 strong magnets, rated for 120 lbs of pulling force on a 1/2” steel plate. The spring system design allows the plates to flex to fit a curved surface. This feature makes the triple magnetic mount a great choice for pipeline survey work with larger metal pipes. Or use it to attach your antenna to the metal bodywork of a vehicle.The magnetic mount is 4.5” in height and weighs 4.5 lbs.