Ventilated Riser Holder. Ergonomic Aluminum Laptop Stand. Transform your workspace and enhance your comfort with our Ergonomic Aluminum Laptop Stand. Unit Quantity: 1 Material: Aluminium,Aluminum,Aluminum Alloy,Silicone Features: Detachable,Heat Dissipation,Ergonomic Design,Sturdy & Protective,Ventilated Cooling,Portable,Snap-together Assembly Mounting: Tabletop.