Heights can be freely adjusted. You can straighten your waist and relieve cervical and neck fatigue, feel comfortable to work. Made of lightweight ABS with non-slip rubber surface pads to keep laptop in place, strong and reliable, not easy to fade. Compatible with all laptops 10-15.6", durable enough to support up to 44 lbs (20kg).Foldable and easy to place. Convenient to carry and use at home, the office or somewhere else.The mobile phone bracket is designed on the side, easy for placement and viewing.Reduce the contact area with the desktop, which provides a cavity and is more conducive to heat dissipation