按钮开关式磁性表座（4边座）

Kennedy® Mag Stands

With four magnetic faces, one at 45°. Heavy duty with universal clamp. 
Mounts: 1/4" I/D lug, stem/spigot diameter: 1/8", 5/16" & 3/8".
Base dimensions: 48 x 40 x 50mm.
Column height x diameter: 175mm x 12mm.
Crossbar length x diameter: 165 x 10mm.
Magnetic pull: 30kg.
Overall height: 227mm.

Universal 4 Mag Stand