Convert any desk to standing with this affordable, portable standing desk converter for laptops and single monitors. Smile more at with a quick & easy sit stand up desk riser. All measurements are approximate.FREE YOURSELF FROM SITTING ALL DAY: with this simple, easy, affordable sit stand-up desk converter for laptops and single monitors.PERFECT SIZE: this standing desk converter has a 27.5x19.5"" top panel that’s perfect for laptops or single monitors with a keyboard & mouseCOMPACT STANDING DESK CONVERTER: Lightweight, portable, ergonomic design collapses thin and moves straight up & down in a compact footprint4 HEIGHTS (3, 6, 10, 14 in.): spring-assisted height adjustment on this standing desk riser is fast & simple letting you quickly raise laptops and single-monitors to standing heightSIMPLE, AFFORDABLE STAND UP DESK CONVERTER: affordably convert any desk to standing with this desktop riser. Compact design won’t cluster your desk & is easy to move."