Holds standard size postcards (100 Sleeves per pack) Open on short side Exterior Dimensions: 3 11/16 X 5 3/4 If you join the White Border ($3 per Month) or Divided Back ($4 per Month) Membership it Includes 40% discount on items in the SMPostcards Ko-Fi shop! Shipping USPS Ground Advantage Now shipping to Canada! Request a quote through KO-FI messaging! Buyer is responsible for all country taxes, including VAT Excessive Shipping will be refunded 1-PCSLV