JAM Paper Envelope with open end measuring 4 1/8" x 9 1/2" is perfectly sized for everyday business correspondence, comes in white color and is sold as 25 per pack. JAM Paper White envelope measuring 5 1/2" x 7 1/2" is made from 24 lb paper. Envelope with open end can be used for greeting cards, invitations, weddings or any announcement and is sold as 25 per pack. Size: 5 1/2" x 7 1/2". Gummed closure with straight flap. Perfect for greeting cards, invitations, weddings or any announcement. Material: Paper. Envelope opening: Open end. Paper weight: 24 lbs. Finish: Smooth. Envelopes are appropriate for any office setting. Their smooth, neutral colors make them great candidates for any report, presentation, or other important documents. Sold as 25/Pack.