Hi-Rise Chairs with Bridge Set is the combination of a Hi-Rise Chair, and an Armless Hi-Rise Chair with Bridge Kit. Why? Because the table is integrated, and not set on top of an existing chair arm, it makes the table and arm the same height, and feel more comfortable when resting both your arms. It also prevents extra parts from going to waste when someone wants to add a chair and table for a combo. Instead we reuse the chairs arm for the second chair. Because sharing is caring. Features UV INFORMATION: RICHLITE: LOW-IMPACT MANUFACTURING: