Cintas, a maker of workplace products, said it made a $5.1 billion offer for smaller uniform supplier UniFirst that has been rebuffed multiple times.The detailsThe company went public with its offer Tuesday morning after it said UniFirst’s board refused multiple times to engage further on any deal talks.

Cintas is proposing to pay $275 per share for all of Unifirst’s outstanding common and Class B shares, according to the report.