JAM PAPER #4 Coin Business Commercial Envelopes - 3 x 4 1/2 - Brown Kraft Manila - 50/Pack Color: Brown Kraft Size: #4 Coin (3 x 4.5 inches) Quantity: 50 /pack Features a straight flap with gummed closure and smooth paper finish. Perfect for personal mail, business mailings, greeting cards, announcements, and so much more!