If you own a Roksan Xerxes, you know what this is.
From another ad from another seller of the same stand: "This is the original plinth and stand for the Roksan Xerxes turntable, which when used improves timing, focus, soundstage and general musical coherence. It is a must for Xerxes owners who want the ultimate performance from a dedicated stand. Stand is 23 inches tall. "
I also used it with a Wilson Benesch Circle turntable.
Its also a good tool for leveling other suspended tables, like Linns and Thorens, as you have access to the springs from underneath.
Has spikes top and bottom. It collapses for shipping.
Buyer pays shipping. Immediate paypal payment is expected, with shipping only to verified addresses. No PO boxes.