These envelopes are perfect! Extremely high quality and very durable.Thick quality of paper used for envelopes, and you will love the self adhesive feature of this envelope. Style: Square flap envelope Color: White Dimensions: A1 (5.125 x 3.625 Inches).. Materials: 120gsm high-quality paper . Quantity: 100pcs per pack Feature: (1)High-grade environmentally friendly envelope (2)Modern style (3)Classic color (4)Natural and smooth touch (5)Thick and solid paper (6)Simple to use, no need to seal with an envelope moistener , just peel and press. Use: Perfect for Small Gift Card Envelopes , Perfect for RSVP Cards, Bridal Shower, Wedding Invitations, Thank You Cards, Party Invites and more. Our Sales Warranty: Our company philosophy is to provide both beautiful and useful products with environmentally friendly materials and reasonable price.We¡¯ll offer customers the best services. The products can be returned within 60 days without any reasons.