Description: [Stand Up Quickly]: The standing desk riser folds vertically from 13.5 cm to 52 cm (5.3 in to 20.5 in). Adjusts to the right comfort level easily and smoothly with gas spring force and is held with a height locking mechanism, allowing you to stand all day when needed to relieve muscle tension, relieve stress and improve work efficiency [Ergonomic Design]: The keyboard tray is ergonomically designed for both mouse and keyboard. With the help of gas springs, the transition from sitting to standing is fast and easy, and the double squeeze latch selects the ideal height, allowing you to sit or stand as needed in your workspace, keeping your back in a neutral position and healthy posture. [Increase your workspace]: The top surface of the sit-stand desk measures 80 40 cm (31.5" x 15.8"), providing space for a single monitor, dual monitors or a laptop (33 lbs/15 kg). The 65 30 cm (25.6" x 11.7") lower layer holds 4.4 lbs/2 kg for a standard keyboard, mouse, and optimizes the surface area, which can be raised and lowered synchronously with the work surface to create a comfortable workspace. [Quick Assembly]: The desk riser can be used immediately after unpacking, place it on your existing desk, connect the keyboard tray, connect the keyboard cradle and start setting up your workspace. Specifications: Material:Wooden And Metal Frame Assembly Feature:Adjustable Height, Easily Assembled Include: 1X Desk SPETLEK Height-adjustable computer desk, mobile bed table, laptop stand in White