6 1/2 x 6 1/2 Square Invitation Envelopes - White Linen (50 Qty.) Size: 6 1/2 x 6 1/2 Square Envelopes / 6 1/2 in x 6 1/2 in / 6.5" x 6.5" / 165mm x 165mm Quantity: Pack of 50 Color: White Linen USES: Invitations, Announcements, Holiday Cards, Greeting Cards, Photos, CD/DVD, Save The Dates. EVENTS: Weddings, Parties, Holiday, Corporate, Banquets, Baby Shower, Birthday, Graduation. Printable on off-set printing presses and some home printers.