Tosnail Heavy-Duty Folding Orchestra Music Stand Black - Adjustable Height from 31.5" - 59" Professional music stand. Durable and light weight. Great for Music books, Lap Tops, Phones and Tablets Bookplate dimension: 20" x 14"; Adjustable Height: 31.5" - 59" Material: Stainless Steel Metal spring arm extensions hold music sheets securely in place. Twist knob on vertical post specially engineered for maximum weight handling capability. Adjust to small size, light weight and easily portable. Lightweight relative to most music stands and easily transportable due to vented tray.