Topeakmart 2 Pcs Speaker Stands Adjustable Monitor Metal Set Speaker Triangle Pair Steel Stands Total Dimension: 43.5 x 38 x 80-130 cm/17 x 15 x 31.5-51.2''(LxWxH) Height Adjustable: column can adjust for 6 heights(80 cm/31.5'', 90 cm/35.5'', 100 cm/39.5'', 110 cm/43.5'', 120 cm/47.5'', 130 cm/ 51.5''), which can meet your different needs Safety Lock Pin: locking pin ensures stable and accurate height positions and are easy to loosen, tighten and readjust Stable: triangle base stands securely and ground stakes optional for securing Solid Tray: tray size: 23x23cm with load-bearing up to 40kg; the tray comes with anti-skid pad to protect the safety of the loudspeaker box