"Nothing to attach or assemble Prevents your notebook from overheating; the more air under the notebook, the greater the heat dissipation Protects furniture from heat damage; protects notebooks from liquids spilled on work surface Ideal for presentations: pivots your notebook 360 degrees so others can see the screen Can be used anywhere: at work, home or school Adjust keyboard to a comfortable height with the stackable risers Works with all notebooks Rubber feet keep notebook from moving on airline trays and other slippery surfaces Weighs 630G Lifetime warranty "