Treston uprights are the basic element for accessorizing our tables. Uprights are kitted in pre-determined module sizes to fit our Concept, Cornerstone and TP tables. Select an upright module based on table width. Single bay modules include 2 slotted upright posts, 2 corner brackets, 1 horizontal tube, and all attachment hardware. Double bay uprights include 3 slotted upright posts, 2 corner brackets, 1 straight "T" bracket, 2 horizontal tubes, and all attachment hardware. Double bay uprights allow for more locations for accessories.