Aluminum alloy quiet design general size.Direct connection to the notebook cooling hole.Anodized high-strength aluminum alloy with outstanding .texture Selected electrodes quickly turn still as silent.There are multiple silicone pads on the contact surface to prevent slippage and protect the body from scratches.Product DescriptionShell structure material: aluminum alloy + ABSCompatible: All types of tabletName:Lifting laptop standMaterial:Aluminium alloy/siliconeColor:SilverWeight:776g(No fan)/825g(With fan)Size:235*238*34 mmPanel thickness:3.5mmLaptop table: laptop table.Laptop table sofa: laptop table on the bed.Foldable storage, can be placed in a computer bag for easy carrying.