With the CADR-46 Height Adjustable Corner Sit to Standing Desk Riser you can enjoy the benefits of a standing desk with the space saving design of a corner desk. You can sit and stand part of the day to take advantage of all the health benefits that come with standing and moving around. With the CADR, you will become healthier and more productive. It sits directly on your current desk with no need to buy additional furniture. The MAFM helps support your back, hips, knees and feet so you can get all the benefits of standing while you work. This versatile desk mat effectively “reduces" your weight by 30% to make standing easier on your feet and joints. The desk riser features a spacious 46" wide x 23.25" deep work surface that is designed for corner desks and can hold 2 large monitors or a laptop. It also includes an extendable ergonomic keyboard tray that measures 40" wide x 11.13" deep and keeps the monitor at the proper height to prevent neck strain. The corner riser provides continuous height adjustments up to 18" and down to 5" above desktop to optimize the ergonomic work position for people of all heights. Gas piston assist allows you to easily raise and lower up to 40lbs with convenient side handles. Grommet included for mounting a single or dual monitor arm, or for running cables. All you need to do is attach the keyboard tray, place the riser on your existing desk, and you're ready to go. . The MAFM Anti-Fatigue Mat is designed to work in tandem with standing desk risers, like the Rocelco ADR, DADR, EADR, CADR and MSD series. It will help support your back, hips, knees and feet so you can get all the benefits of standing while you work. This versatile desk mat effectively “reduces" your weight by 30% to make standing easier on your feet and joints. The advanced multi-layer construction offers a comfortable “leather like" top surface, a memory foam inner layer and a non-slip bottom. A perfect 30" x 20" size provides plenty of room to move around, but still can fit into the kneehole of a standard desk or built-in when it is not being used. Beveled edges help to reduce tripping issues and ¾" commercial grade thickness provides hours of comfort and stability. The durable materials on this desk mat will not break down, even after years of use.