Mounts : 1/4" I/D lug, stem/spigot diameter: 4mm, 8mm, 3/8" without bush.
Base dimensions : 60 x 50 x 55mm.
Column height x dia. : 175 x 12mm.
Crossbar length x dia. : 165 x 10mm.
Clamp ring : 6.35mm.
Magnetic pull : 50kg.
Overall Height : 230mm
Weight each : 1.2kg