LIFT - Tall, Sturdy Adjustable Height Computer Monitor Stand for Sitting & Standing Desk. Single & Dual Monitor Riser Holds iMac & Laptop, Black TALL ADJUSTABLE HEIGHT MONITOR RISER: Raise computer monitors to the perfect height when sitting OR standing at a desk! Ergonomic, adjustable height stand rests on top of your desk. No installation! FAST, EASY, SIMPLE ADJUSTABLE HEIGHT MONITOR STAND: Squeeze the levers on the top panel to quickly raise/lower monitors from 12-20" above your desk. The ideal monitor riser for tall people! TALL, ERGONOMIC STAND UP DESK RISER: adjustable height design (13-20") elevates monitors to eye-level and keyboards to elbow-height to improve your posture & health when sitting or standing at a desk A MONITOR STAND THAT HELPS ORGANIZE YOUR DESK: smooth top panel for writing & organizing work materials. Removable lower shelf adds stability, de-clutters & helps vertically organize your workspace. DURABLE & STRONG COMPUTER MONITOR STAND: holds iMacs, all-in-one's, dual-monitors & single monitors. Simple Assembly. No Installation. Rests on top of your desk. Designed by Uncaged Ergonomics