SpecificationSize:290x200x25-310mmSuit:For11-17inchlaptopandtableFunction:FoldablelaptopheighteningbracketandhollowbottomdesignFeature:1.Portableandfoldable2.8+6speedheightadjustment3.Hollowbottomheatdissipation4.Non-slipsilicone 1. Support all laptops. Tablets 2. Static load-bearing: 50KG 3. Adjustable gears: 7+8 gears (die-cast silver and gray), 6+9 gears (oxidized silver and black)4. Material: aluminum alloy + silicone 5. Selling point introduction: aluminum alloy material, foldable storage, silicone non-slip does not hurt the machine, 6+9/8+7 height adjustment, hollow heat dissipation, multi-size compatibility6. Folding size: 290*50*22mm 7. Expanded size: 290*200*22mm (up to 300mm) 8. Product net weight: 485g, gross weight: 610g 9. Packing size: 300*70*45mm "all Products From Us Have Undergone Strict Quality Checks. if There Is Any Quality Problem Or You Are Not Satisfied With The Product contact Us. we Will Give You The Best Solution.