JAM Paper Brite Hue Orange 4bar A1 Envelopes measure 3 5/8 x 5 1/8 inches each. This pack contains an even total of 50 envelopes. Each one is made out of smooth, high quality, 24lb, 30% recycled paper. These small A1 envelopes are great for mailing RSVP cards, Save-The Dates, announcements, small invitations, A1 sized greeting cards and personal notes, and more! Certain to stand out anywhere, these envelopes feature a vibrant orange color. Each one opens with a standard straight flap and closes securely with a reliable gum closure. Use these envelopes for multiple home and office mailing purposes or to send materials for your next upcoming event! Size: 3 5/8in x 5 1/8in | Color: Brite Hue Orange | Quantity: 50/pack