Flat round base 63.5mm diameter with AMPS hole pattern (30x38mm) Flat VESA 75x75mm hole base 142.8 mm double socket arm for 38 mm ball base Single clamp for full adjustments
Flat round base 63.5mm diameter with AMPS hole pattern (30x38mm) Flat VESA 75x75mm hole base 142.8 mm double socket arm for 38 mm ball base Single clamp for full adjustments