As one of the largest and most established independent office supply dealers in Chicagoland, we truly offer one stop shopping. A superstore may carry about 15,000 items. We carry 55,000 items, an in depth offering of products in all categories. And with over 41 locations coast to coast, Chicago Office Products Co. can have your order delivered right to your door within a few business days. Low Price GuaranteeWe will meet or beat any competitor's advertised delivered price!