2) Prepare 4 bolts assembly by inserting lock washer (#D), then flat washer (#E) onto bolts (#C). Secure corner holes of seat (#2) to chair back (#1) by using bolts (#C). 1) Prepare 2 bolts assembly by inserting lock washer (#D), then flat washer (#E) onto bolts (#A). Align seat (#2) to the holes of the chair back (#1). Secure middle two holes by using bolts (#A). DO NOT FULLY TIGHTEN ALL BOLTS UNTIL ASSEMBLY IS FULLY COMPLETED.