The brief from Carter Parratt was to design durable file storage components that fitted into the companies various existing racking systems, each wallet should have the facility to be locked together as a continuous concertina, but also be able to be easily separated for easy removal.

To allow for the manufacture of a variety of colour variations (to denote particular subject fields), our design features injection moulded frames to which sheet polypropylene pockets are welded. The frames then accept a series of snap on index covers and joining clips.

We developed the features required on the frames and researched the materials specifications to achieve pocket welding to the required standard.