Adjustments made
The addition of two removable blocks that cover the raised portion of the base structure 4 to 5 inches wide and two blocks of equivalent size that could slide under the other legs of the chair would increase the versatility of the product and allow to lift the entire chair. The lenth of the structure that supports the tray is to short. I had to have one custom made. I had the new structure made so that I could adjust its length because the arms of my chair was to large for the length of the original tray support.