RAM 11mm Bolt Head Mount with Square AMPS Plate

Features: 2.25" x 0.875" base with 11mm hole and 1" rubber ball* Fits well on many handlebar pinchbolts with a washer (base is 5mm thick) Standard size double socket arm -Overall length: 3.69": Socket-to-socket length: 3" Square 2" x 1.7" base with 1" ball - Four pre-drilled holes at each corner, making the universal 1.5 x 1.188 (hole spacing) AMPS hole pattern RAM ball and socket technology - allows for almost infinite adjustment and perfect viewing angles Constructed of powder coated marine grade aluminum and high strength composite Holds up to 2 lbs. Made in the USA   * Base is commonly used on motorcycles, attaching to the mirror frame.   Brand: RAM Mounts Part number: RAP-B-252-A-347U Warranty: Manufacturer's lifetime warranty