JAM Paper #10 Christmas Envelopes - 4 1/8" x 9 1/2" - Winter Town Design - 25/pack Winter Town Design with Santa & Reindeer Decorated Flap Size: #10 Envelope (4.125 x 9.5 inches) Quantity: 25/pack Envelopes have Straight Flap, are gummed for self sealing, and are made from smooth 24 lb paper. These envelopes are the perfect way to send gifts of joy and greetings to family, friends, and loved ones this holiday season!