The Rocelco R ADRB-45-MAFM Standing Desk Converter Bundle comes with a R ADRB-45 Sit to Stand Desk Riser and a R MAFM Anti Fatigue Mat. It provides the proven health and energy-boosting benefits of alternating between sitting and standing during your work day, which also reduces back strain and pain. The sturdy steel frame with easy-grip side handles and pneumatic gas piston assist, allows you to easily raise 40lbs on the large 45" x 22.6" desk riser top, into infinite heights between 4.7" and 17.5" above your existing tabletop. Dual-piston lift system provides smoother more precise height adjustment with a wide range of weight on the desktop, compared to single-piston lift systems. This Sit to Stand Up Desk offers a large 28.7" x 9.6" retractable keyboard tray that slides in, pulls out and locks into place for easier access to entire desk riser top while also helping you to get into the most comfortable and ergonomic work position. It can hold 3 monitors up top and a laptop on the keyboard tray or a large monitor and a laptop on top with keyboard on the sliding tray. Your new desk riser comes with anti scratch foam rubber pads so it can be placed directly on your current work surface and safely keep it from moving around. The included MAFM Anti-Fatigue Mat is designed to work in tandem with standing desk risers. It will help support your back, hips, knees and feet so you can get all the benefits of standing while you work. The advanced multi-layer construction offers a comfortable “leather like" top surface, a memory foam inner layer and a non-slip bottom. A perfect 32" 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.

• Standing Desk Converter Bundle includes 45" Desk Riser (R ADRB-45) and a anti-fatigue cushion floor mat (R MAFM) in order to provide long standing comfort, reduce joint stress, minimize strain and extend your health benefits while you work.
• Large stand up desk converter - 45" wide by 22.6" deep desktop workstation riser holds up to two 32" monitors plus other work materials and the 28.7" by 9.6" retractable tray will hold a keyboard and mouse, or even a laptop if needed.
• Swift and stable lifting motion - sturdy metal frame paired with strong dual piston assist and easy-grip side handles can raise or lower up to 40 pounds with smooth continuous height adjustment from 4.7" to 17.5" above tabletop.
• Sliding ergonomic keyboard tray extends, retracts and locks in place while keeping a 4.5" spacing between keyboard tray and desktop, which helps keep arms and wrists in a comfortable position to prevent neck and back strain while sitting or standing.
• No assembly required - Anti-skid foam pads protect your table top and allow you to simply remove from box and place directly on existing work surface. Manufacturer 1 year warranty plus a customer service and friendly tech support team ready to help.
• Height Adjustable - Yes
• Height Range (adjustable options only) - 4.7"-17.5
• Depth Range (adjustable options only) - 23-28