'Closed-clamshell mode', did you know your MacBook has such function? If not, you can try our vertical stand AR-6, it allows you to run a full desktop setup with your MacBook in closed-clamshell mode. Other than that, this all-aluminum sturdy stand also can be used as a laptop riser. The elevated surface offers you an ergonomic reading angle that helps reduce your eye and neck fatigue. There are silicone bumpers that use friction to hold the laptop in place, non-skid silicone pads protect work surface from scratches. In summary, making an investment in a laptop riser can help you function in great convenience, whether you are in your home or in the workplace. SPECIFICATION Product Category: Laptop Riser Rank: Premium Material : Silicone Pad,Aluminum Surface Finish: Sand-blasted Aluminum Anodic Oxidation Color: Sliver Dimensions: 233x206x73mm (9.2'x8.1'x2.9') Applicable Devices: Laptop Fit Screen Size : 12' MacBook,11'/13' MacBook Air,13'/15' MacBook Pro(Late 2016) Weight Capacity(per layer): 5kg (11lbs) Instruction Manual Included: No