Seachoice® Chair Rod Gimbal.
Turn any chair into a "fighting chair" with the Rod Gimbal from Seachoice®! Made from triple chrome-plated cast brass for strength.
Bolts under chair, projects 4 1/4 x 3 1/4 x 4 1/4" w. Fastens with 1/4" screws (not included).
Make sure you're prepared to fight the good fight.