【9 X 12.75 Inches, 100 Packs】 Comes in a nice storage box, Catalog envelopes are 100 pcs/packs, strong self sealing self sealing can be very good to protect your items 【 Self-Sealing Secure Catalog Envelope 】 No need to lick glue or water to moisten when handling multiple pieces of mail. Envelope self-sealing design, provide you with a firm and convenient sealing experience, always ensure the safety of internal documents 【WIDE APPLICATION】Tanshuqin Self-Seal Catalog Envelopes for Invitation Cards, Organizing and Storage, Pictures, Mailing photos, Documents， Credit cards， Papers, Files 【SELF ADHESIVE SEAL】 Tanshuqin Self-Seal Catalog Envelopes are designed with an ultra strong Self-Seal adhesive strip to create a full, super secure seal across each envelope's width that won't easily open. keep the inner documents safe all the time If you have any questions, please feel free to contact us, we will give you a satisfactory answer in the first time 9" x 12.75" Dark Blue Self-Seal Catalog Envelopes for Invitation Cards, Organizing and Storage, Pictures, Photos, Documents