JAM Paper A8 Size black linen with gold foil lined envelope in a pack of 25 is suitable for greeting cards, invitations or weddings and has square gummed flap. JAM Paper A8 Size black linen with gold foil lined envelope in a pack of 25 has overall dimension of 5 1/2" x 8 1/8". Envelope is eco-friendly and is elegant with its unique finish. Size: A8 (5 1/2" x 8 1/8"). Closure: Gum. Opening: Booklet. Material: Paper. Finish: Linen. Envelope type: Business. Black linen envelopes and paper add distinction and sophistication to any document or mailing. Paper weight: 32 lbs. 25 envelopes per pack. Sold as 25/Pack.