RAM Tough-Mag 88MM Diameter Magnetic Base with 1.5" Ball Diamond Base

Features: Contains ten magnets for a strong hold Flat 88mm (3.46") diameter base that is rubber coated to protect the metal surface you’re attaching to Diamond plate with a 1.5" (C size) rubber ball - connects to any C size RAM socket arm * Constructed of marine-grade aluminum and rubber Holds up to 4 lbs. with standard use or up to 3 lb. with heavy duty use Assembly hardware included Made in the USA   * Magnetic base contains 2-hole AMPS pattern with M4 threaded inserts allowing you to change to a 1" (B size) RAM 2-hole AMPS diamond ball base (sold separately)   Brand: RAM Mounts Part number: RAM-238-MAG88U Warranty: Manufacturer's lifetime warranty