Step 3 ● Attach metal base (5) on bottom of chair seat (1), screw bolt (A)with allen key (B) in the holes after four holes aligned ,then tighten screw.(see photos for example) 1 5 A B Step 4 ● Put chair seat (1) on top of gas bar(2), let the gas top into metal base hole, sit on chair to let gas bar attach together.
