1)plastic material,low noise&strong wind 2)upward and downward angle change 3)4 color option, ... )brushless motor Features: 1.New style mini fan,with support,brushless motor,low noise,strong wind,long life 2.product size: 158 ... or downwords 4.Brushless motor make it lower noise,stronger wind,longer life 5.OEM available,you can print with your ...