You can manually adjust the width of the stand through the double-nut to accommodate a variety of laptops, the width of 2 slots on beside can be adjusted from 12mm to 32mm. The middle slot's 13mm cannot adjust<br />Made of Top-quality anodized aluminum material, sand blasting and brushed surface, sleek look durable and will not be deformed and damaged for long-term use. It can be used for a long time<br />Remson Vertical Laptop Stand utilize top quality silicon mat to protect computers tablets and groove away from scratches ">