Comprehensive Package with Reliable Support: Each purchase includes the JARLINK Vertical Laptop Stand and an Allen Key. JARLINK support is readily available to assist with any issues during use. The laptop rack is made with high-quality materials and excellent workmanship, delivering a practical and stylish solution for desktop organization. Durable and Protective Material: The laptop dock is constructed from durable, scratch-resistant anodized aluminum, offering lasting protection for your devices. A non-toxic silicone mat adds extra safety and stability, protecting your MacBook from potential scratches. Sturdy, Scratch-Resistant Build: Designed with non-slip silicone mats, the laptop holder safeguards your devices and your desk surface from scratches, providing a secure and stable base that prevents any slipping or wobbling of your devices. Adjustable and Universal: Included Allen key allows easy size adjustment to suit laptops of various thicknesses from 0.39 inches to 1.6 inches. The vertical laptop stand's compatibility spans a wide range of devices like MacBook Pro/Air, Microsoft Surface, Chromebook, Dell, Samsung, Lenovo, Acer, Sony, Asus XPS, HP ENVY Series, and even books. Innovative Dual Slot Design: This 4-in-1 stand is engineered to hold two laptops and two cellphones vertically simultaneously, doubling your productivity. It uses your desktop space efficiently, keeping your workspace tidy and organized.