JAM Paper White A2 Envelopes with Red Foil Lining measure 4 3/8 x 5 3/4 inches in size and are made out of smooth, 24lb paper. Each one features a white color and a shiny red foil lining! To keep items secure as they travel through the mail, these envelopes have straight flaps and reliable gum closures. The shiny red interior of these envelopes makes them ideal for the Christmas season! Use them to send Christmas greetings, invitations to your upcoming Christmas party, and more! They are great for giving away gift cards or for including notes and messages along with larger gifts. Size: 4 3/8in x 5 3/4in | Color: white with Red Foil Lining