With the sturdy engineering structure, NotePal ergostand offers 5 different hight settings for laptop users better viewing angle ease the pain of neck and wrist for heavy users Metal mesh surface with built-in 14cm silent fan ( without fan frame) performs ultimate thermal solution On-off switch adapts to various working environments Two anti-slip probs with adjustable width setting design are specially for accommodating from netbook to large size notebook, including wide screen Easy front I/O port access for all types of adaptors Blue LED light with fan to feel cooler.