Large 14.25

Large Flat Rate Boxes
12″ x 12″ x 5-1/2″ Inside
12-1/4″ x 12-1/4″ x 6″ Outside
23-11/16″ x 11-3/4″ x 3″ Inside*
24-1/16″ x 11-7/8″ x 3-1/8″ Outside*