nmm Rear Leg (C) to Seat Frame (A) with Allen Key (G), Bolt-Large (D), Lock Washer (E), and Flat Washer (F). Take the Allen Wrench, and turn the bolts until the legs are secured. DO NOT TIGHTEN COMPLETELY. Stop when you feel you are adding force to tighten the bolt. Banach Front Leg (B) to Seat Frame (A) with Allen Key (G), Bolt-Large (D), Lock Washer (E), and Flat Washer (F). Stand chair up on an even surface and check that it is balanced.