NILLKIN ProDesk Adjustable Aluminum Alloy Laptop Notebook Stand Holder1. Material: aluminum alloy + silicone 2. Support height: 530mm 3. The height and angle can be adjusted freely, easy to use 4. Hollow design at the bottom of the bracket, good heat dissipation effect 5. The non slip silicone pad effectively prevents the device from sliding 6. Foldable design, easy to carry 7. Compatible with tablets within 17 inches 8. Size: 295x255x57mm Specification: Package Weight One Package Weight 1. 35kgs 2. 97lb One Package