Redscorpion Adjustable Height Rolling Mobile Laptop Desk Table Computer Desk Cart Over Sofa Bed Table(Black) Laptop Desk Sheet Material:1.0mm thickness of Steel,More Stronger and Stable;Four Wheel Brakes is Made of Nylon,End Stopper on Both Ends Prevents Laptop from Falling Off the Table When Tilted LaptopTable Lift Function:According Tables and Chairs Height to Adjust Central Height(Adjustable Height:23-39 Inches),Whether Tt is Work or Relax,Your Arms Naturally Feel Relaxed and Comfortable Computer Desk Overall Tabletop:23.6x15.7 inches(LxW);Large Shelf:15.7x15.7 inches(LxW);Small Shelf:7.9x15.7 inches(LxW) Sofa Bed Table Advantages:360 Degrees of Freedom Rotation Function,Stable,Practical,Convenient,Adjustable,Multi-function,Perfect for using Over Sofa,Bed,On Floor or Elsewhere When Using Laptop,Reading or Eating,Easy Cleaning Package:Parts of desk(packed Plastic bags for each )&Assembly Instruction & Install Tools