‎2x2 - 2.5x2.5 - 3x3 inch

AmStaff Olympic Weight Plate Holder for Power & Squat Racks – Available 2×2 – 2.5×2.5 – 3×3 Inch Tube Sizes – Weight Plates Horn Storage Attachment for Power Squat Rack – (Pair) (3″x3″ Tube Racks)