The world's most versatile camera mounts with twice the positioning power! The preferred choice for installations with demanding requirements. • 6" or 9" overall mount length • Both adjusting points have a full range of motion: 210° Tilt, 360° Turn & 360° Rotation • 1/4-20 mounting stud with lockring • Shafts are machined aluminum alloy 0.875" (22.2mm) in diameter • Knob and tamper-resistant set-screw adjusting options included • Square mounting base for solid surfaces, 2.5" x 2.5" (63.5mm x 63.5mm), with four 0.219" (5.56mm) holes on 2.0" (50.8mm) x 2.0" (50.8mm) layout Choose Black or White.