Celebrate your party in style! These invitations are printed on white iridescent cardstock and can be backed in your choice of cardstock: hot pink or antique gold.. Invitations measure 5 3/8 " x 8 3/8" Outer envelope measures 5 1/2" x 7 1/2" Envelopes may be printed with your two-line return address (up to 32 characters/spaces per line) if desired. Please order carefully. Orders for personalized items cannot be canceled, and personalized items cannot be returned. Please allow an additional 1-2 weeks for delivery of personalized stationery orders.* indicates required information.