Litop&reg; Green and Hot Pink Color Silicone Super Mini Heart Reduction Stand balls Cooling Balls Cooler Stand Ball for all MackBook Laptop Notebook (Green and Hot Pink) Depending on the smooth surface of the cool ball, you can get forward, backward, leftward, rightward and so on. Enable your computer adjust to a new comfort sitting positions. Big ball diameter 1.6inch, small ball diameter 1inch Silicone cooling ball is a perfect product for your laptop. Efficiently decrease the overall temperature by creating a cooling gap. Notebook Cool Ball protects your laptop from hard landing on desktop