Brand: OImaster Color: BLACK-2-Tier Upgrade Form Factor: Empty Bracket Compatible Devices: Tablet, Smartphone Compatible Phone Models: Macbook Air Mounting Type: Tabletop Application: Designed for 10-17 inch laptops and mobile phones, this Oimaster laptop stand is 12.2 inches in length and width, and the two additional phone stands can hold mobile phones very conveniently. Multi-functional Foldable Laptop Stand: The patented laptop stand has two foldable legs, which can be used as display height stands, and can also store keyboards, mice, and books. This stand has two foldable phone stands on the back, where you can place your mobile phone. It's a good desktop organizer. Ergonomic Triple Design: This triple notebook stand has two heights and 20 viewing angles, helping you maintain good posture, reduce neck and back pressure, and increase the comfort of your workspace. Ventilation Design: There are holes on the surface of the laptop desktop stand, which can increase the airflow at the bottom of the laptop and quickly dissipate heat. The two silica gel cooling racks provide good ventilation and more airflow for heat dissipation.