A large gas spring scissor-lift desktop sit-stand workstation incorporates the effortless gas spring structure with the MDF & PVC work surface to create an ergonomic work surface to boost your working productivity. Quality MDF board, features high impact resistance (TSCA Title VI compliant). Squeeze handle, adjusts the height in a snap. The upgraded keyboard Tray, provides comfort for your wrists. Quality MDF board features high impact resistance (TSCA Title VI compliant).