The product is a bundle of 25 #2 8.5 x 12 Kraft Bubble Padded Envelopes Mailers. These self-seal envelopes are made of durable Kraft material and have an exterior size of 8.5″x12″. Manufactured in the United States, these mailers are perfect for shipping and mailing needs in a business or industrial setting. The custom bundle offers convenience and reliability for packaging and shipping requirements.