Varidesk Pro Plus 36 White. (was Varidesk Pro Plus) . 91.4cm x 68.5cm- space for laptop and monitor- includes keyboard tray. The VARIDESK Pro Plus 36 adjustable riser sits on top of your existing desk- allowing you to switch from a seated to standing position quickly and easily. The new lifting keyboard tray ensures ergonomic comfort for your arms and shoulders whether sitting or standing. Studies prove that standing up for part of the workday can increase your calorie burn and raise your energy levels- metabolism- and productivity. Plus- it can reduce your risk factors for diabetes- high blood pressure and cardiovascular disease.