Tatco Adhesive Back Mailing Seals, TCO36200, Round, 1" Diameter, 3" Core, White, 5,000 Per Roll - Adhesive-backed mailing seals are ideal for sealing folded flyers and brochures that do not need envelopes. Seals dispense easily from roll, fold for application and facilitate easy opening of mailing without damage. Tatco Mailing Seal Dispenser (sold separately) separates seals from backing for quick, easy use.