Ram Mount Roto-View Adapter Plate (RAMHOLROTO1U) Easy turn of tablet for optimum viewing points in landscape and portrait mode No need for loosening and tightening of double socket arm knob to reposition tablet Round adapter plate contains multiple mounting hole patterns for all RAM tablet cradles Compatible with all 1"/1.5" bases/mounts with AMPS hole pattern or diamond hole pattern Durable materials insure long lasting performance and function of Roto-View Made in the U.S.A.