Sit on top of your existing desk and allow you to work comfortably from either a sitting or standing position. It features smooth and quiet height adjustments without shake or rattle, ensuring a stable surface for all your devices. Featured with 44LBS max load, 5.12in-20.08in quick height adjustment, large working area can place one monitor, one notebook PC within 32inches, and some files. Come with a phone/tablet slot on keyboard tray, entertain yourself and offer you a healthier work style. Eliminating or reducing neck, back and shoulder pain. *WORK HEALTHIER: Our standing desk can be adjusted to the desired height (5.12in-20.08in) smoothly via pressing the spring handle. Sit and stand throughout the day for a healthier way to work. This sit to stand desk riser is designed to encourage more movement throughout the day helping to improve productivity and energy, as well as eliminating or reducing neck, back and shoulder pain. *LARGE DESKTOP & KEYBOARD TRAY: 31.3x15.36inches desktop working area can place one monitor, one notebook PC within 32inches, and some files. Come with a phone/tablet slot on keyboard tray, you can put cell phones, tablet pc on the stand up desk. Entertain yourself and give you a break. *STABLE & DURABLE: Made of premium density board with special blistering process and coated iron materials, support 44LBS max load. Our height adjustable desk starts very smoothly and there are rubber feet pads, which can better stabilize this standing desk assured that your expensive equipment will be safe and secure on this stand up desk desktop. *WIDE APPLICATIONS: Our standing desk is most suitable for the office, and our height adjustable desk is also suitable for bedrooms, balconies, living rooms. Enjoy watching documents while drinking coffee. *EASY SETUP: Simply pull your already assembled adjustable standing desk out of the box and attach the ergonomic keyboard tray using the included hardware. Quick installation and enjoy your working time. Product Type：Height Adjustable Workstation Desk Max Load Capacity: 20kg/44LBS Materials:15mm Density Board with Blister Processing,1.8cm/0.71in Iron Coating Tube Height Adjustable: 13cm/5.12in-51cm/20.08in Application: Perfect for laptops, notebooks, tablets and monitor within 32in Tablet/Phone Slot Size: 28.2x1.7x2.5cm/11.1x0.67x0.99inches Desktop Dimensions: 79.5x39x1.5cm/31.3x15.36x0.6inches Keyboard Tray Dimensions: 78x25.5x1.5cm/30.71x10.04x0.6inches Unfold Item Size w/ Keyboard Tray: 79.5x64x51cm/31.3x25.2x20.08inches Foldable Item Size: 79.5x64x13cm/31.3x25.2x5.12inches Item Weight: 13.2kg/29LBS Package Size: 90x57.5x16cm/35.44x22.64x6.3inches Package Weight: 14.7kg/32.41LBS 1 x Workstation Desk 1 x Keyboard Tray 1 x Screw Tool Kit 1 x Installation Instruction