Tatco Mailing Seals, 2 Adapters, 3" Core, 5000/RL, White (TCO36200) Roll of 5000Adhesive 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. General Information Manufacturer: Tatco Products, Inc Manufacturer Part Number: 36200 Manufacturer Website Address: http: www. tatcoproducts.