VEVOR Wall Mounted Folding Table, 31.5" x 23.62" Wall Mount Drop Leaf Table, Wooden Floating Desk with Iron Bracket, Fold Down Desk for Small Spaces, Home Office, Dining, Laundry Room, Kitchen, Bar

The manual shows Fx1, the Wood worktop, but has no instructions on how or where to instal it. The packaging stated “Please put the fixing plates well-aligned in the stuff”. What stuff? Any guidance or direction would be greatly appreciated. Order # 114-3818760-6692255 Thank you, Cathi Hogan