Reusable and tamper-evident for transport, protection, and storage of cash and documents. Designed for years of constant use. 5-year warranty against faulty workmanship and materials. Cost-effective alternative to single-use envelopes for two-way mail transmission between head office, branches, depots, and field representatives. Environmentally friendly. Material protects contents from water damage. Reversible address card printed both sides. Stamp fitment included. 10 Securisac seals included. 16 x 12 x 4 in.