Aluminium laptop stand, tablet or pad stand and holder color: silver portable and foldable 6 speed height adjustment non-slip silicone bottom height adjustment range: 5.5cm-15.5cm material: abs + aluminum alloy + silicone. function: laptop heightening bracket and cooling pad portable and foldable hollow bottom heat dissipation multi support design support for laptops up to 17 inches support most tablets;can also support books and other items the bracket is retracked by about the size of a paper folding fan for easy carrying. laptop /notebook/ ipad stand holds up to 17" adjustable foldable aluminum laptop stand desktop notebook holder desk laptop stand