These envelopes are made out of translucent vellum paper. Each one is ideal for fitting standard sized sheets of paper without bending or folding! Each one features a commercial style flap with reliable gum closure! These envelopes are ideal for any contents that you want to show off or for adding a delicate, classy look and decorative outer layer to colored envelopes. Use these envelopes for flyers, pamphlets, brochures, invitations, informational sheets about your next event, and more!Details:Available in multiple countsClear9" x 12"28 lb. (75 gsm)Commercial flapGum closureVellum paper