Square envelopes are perfect for announcements, special events, corporate dinners, wedding reception invites, greeting cards, holiday cards, other invitations, direct mail, or general use. With a modern, square back flap and sleek design, these envelopes will compliment your stylish invitations, tasteful thank you cards, or meaningful notes. They are excellent for any formal or business occasion and also work well as shipping envelopes for a variety of small or flat items. You can't go wrong with such a versatile choice. Best of all, these envelopes feature a peel-and-press sealing method! Simply remove the adhesive strip on the inside of the back flap and press down to seal your envelopes. You'll get a great seal every time, no moistening required. The 70 lb. text-weight envelopes are an excellent choice because they are durable and will protect whatever you use them for. The sturdy and durable thickness of the envelopes in this 50 pack makes them perfect for shipping long distances without bending or tearing. When printed on, LUX envelopes are complemented with a wide variety of ink colors. You won't have to worry about paper jams, tears, or ink smears with these envelopes. These envelopes are also ideal for addressing notes and invitations by hand. Whether you use a gel pen or calligraphy pens, you'll be impressed with the high-quality, smudge-resistant paper. These envelopes measure 8 1/2” x 8 1/2” (216 mm x 216 mm).