These envelopes are made out of smooth, 30% recycled paper. They have a perfectly square shape! Each one has a straight flap and a dependable gum closure. The bright and vibrant green color of these envelopes causes them to stand out anywhere they are placed. Use these envelopes to send invitations, birthday cards, get well cards, congratulation cards, announcements, and more.Details:Green6.5" x 6.5"24 lb. (90 gsm)25 envelopesRecycled paper