Specifications: Material: MDF Height Range: 27-40cm Desktop Angle: 0-36° Color: Grey/White/Black/Yellow Weight Capacity: 40kg Notes: 1.Due to differences in monitors, or differences in factory production batches, there may be chromatic aberration problems, please be tolerant of this problem. 2.Please allow 1-3cm slightly error due to manual measurement difference. 3. There is no small fan, no small light, no usb .