Oswald Donner & Co Ltd stock a good range of Zipped, Reusable Bags, Security Envelopes and Security Pouches, all manufactured from a durable plastic material, which is sewn to ensure optimum security. There are two designs of locking housing available and two seals - one accepts a button type seal and the other a flat arrow type seal - both designs are compatible with other designs in the market place. Please CONTACT US for any further information you may require and for pricing and to place an order.