Porter Bariatric Operator Chair With Black Fabric Seat And BackPorter Bariatric Operator Chair With Black Fabric Seat And Back Porter is a heavy duty operator chair for usage up to 27 stone that offers extraordinary comfort for less money. The secret to comfort is its high performance foam formulation and high quality, strong and sturdy materials making it ideal for constant commercial use including shift workers, call centres and security. Gas lift adjustment with standard tilt lock Generous seat measurements