High Quality and Trustful Guarantee: The vertical laptop stand is made of high quality aluminum alloy treated with anodized process. Vaydeer offers the best customer service and satisfying solution to any problem you encountered. Protective and Stable: Anodized aluminum is scratch-resistant and durable. Non-toxic silicon inside the slot protects your MacBook from being scratched and secures it in stable position.Non-slip base with silicone pad prevents your vertical laptop stand from moving around. Wide Compatibility: 4 in 1 design makes it a multifunctional laptop stand. You can not only place your laptop on this laptop stand but also your phone, pen, notebook and also tablet. Some of the compatible devices are MacBook Pro/Air, Microsoft Surface, Gaming Laptops, Notebooks, Dell Samsung Lenovo Acer Sony Asus XPS and HP ENVY Series. Adjustable Size: Adjustable slot width for laptop whose thickness is from 0.63in /16mm to 2.36in / 60mm, you could adjust the width of this vertical laptop stand by the screws to fit in different laptops. Dual Slot Design - Cradle up two laptops and phone iPad vertically at the same time. Vaydeer vertical laptop holder is great for space saving and building up a neat and organized space for desk.