To increase the degree of placement for the notebook or phone tablet and to help ventilate heat from the device and battery for air to circulate To help extend the life of equipment and parts Also helps to adjust the angle of use, helps to see Including laying your hands Helps to reduce fatigue while working, easy to install, fold, and is also a device to help prevent scratches. Under the machine, do not rub or drag on the table surface. Including anti-slip #Notebook legs #Cooling # slip # RTW02 # RTW02