Brightly colored envelopes offer a ruled format for Inter-department routing on one side with space for 31 entries. Ideal for color-coding inter-company mail or to signal special handling. Holes allow visual acknowledgment of contents. Inter-department Envelope design features a string-and-button closure and standard style with five columns: Date Deliver To Department Sent By and Department. Envelopes are made of 28 lb. stock.Quality Park Inter-Department Colored Envelopes Red 100 / Box (Quantity)