Package Including: 100 pack colorful A6 Invitation envelopes (6.5 x 4.75 in). Superior quality: Made of 120 Gsm paper. Keep envelopes sturdy, hard-wearing and private. Easy to Seal: No need to seal with water, just peel and press. Multipurpose: invitations, Wedding, graduations, birthday, showers, business cards, thank you notes, Christmas Cards, greeting cards, announcements, etc. Printer Friendly: Compatible with printer models. No need to worry about smudging or having the envelopes engulfed by printer. weight: 0.26 pounds.