TTW Stainless Steel Turntable LP Outer Ring and Acrylic Centering Platter. It is their universal stainless-steel turntable outer ring in excellent condition. Since TTW is not around any move, it is hard to find an outer ring less than $600.
This is a huge improvement in dynamics, detail retrieval, complete low-frequency control, 10 db plus in background noise reduction, up to 50% improvement SRA tracking. These all result in reference level vinyl playback.