Check the listing for details. Staples Packing List Enclosed Envelopes 4.5x5.5" Open Box - 90 Envelopes. Color: Red, Condition: New – Open box. Listed at 6.95 USD. This Staples Packing List Enclosed Envelopes set includes 90 envelopes measuring 4.5x5.5 inches each. The envelopes are red in color and made of polypropylene material. The brand is Staples and the model number is 468074. The envelopes are perfect for packing and shipping items and are ideal for use in a business or industrial setting. The style of the envelopes can be found in the description. This item is not a custom bundle and was manufactured by Staples Brands Group. It is California Prop 65 compliant with a warning of 0. The item width is 12 inches and it is a plain envelope suitable for various postal services. This pack is missing 10 from the original packaging - box of 100 - open box - 90 envelopes!!