Envelope
An envelope is a common packaging item, usually made of thin, flat material. It is designed to contain a flat object, such as a letter or card. Traditional envelopes are made from sheets of paper cut to one of three shapes a rhombus, a short-arm cross or a kite. These shapes allow for the creation of the envelope structure by folding the sheet sides around a central rectangular area. In this manner, a rectangle-faced enclosure is formed with an arrangement of four flaps on the reverse side. Envelopes are used in a variety of industry’s and are a commodity of a very important value. Envelopes are the single most important stationary item which is very essential as it is the object to confer postal transactions with. This is a tool which is present in almost every organisation as well as offices and even households for their postal needs. The conveyance of these postal documents happens through various modes of travel and is delivered at the doorstep of the addresed individual and carries taxed for the particular conveyance.