JAM PAPER A6 Metallic Invitation Envelopes - 4 3/4 x 6 1/2 - Mars Stardream - 25/Pack Metallic Mars Red Envelope Size: A6 (4.75 x 6.5 inches) Quantity: 25 envelopes per pack Quantity: 25 envelopes per pack Envelope features a Straight Gummed flap and a Smooth paper finish.