Multi-Pack Invitation Envelopes includes 120 envelopes in 6 pastel colors including pink, yellow, lilac, mint, beige, and green. Made of 120 Gsm thick paper with gum flap seal that activates with moisture for permanent closure. Each envelope measures 4.25 x 6.25 inches, ideal for 4 x 6 inch inserts. Suitable for invitations, greeting cards, save the dates, thank you cards, photo cards, announcements, and notes. Weight: 1.17 pounds.