An electrophoretic composition in the form of a dispersion containing a dispersion medium, and electrophretic particles dispersed in the dispersion medium and having a color selected from white and non-white colors. A mating lid for the container is formed which mates with a top portion of the container and has a tab which extends outward and downward from a sealing lip on the lid. In operation, the tabbed magazine can be inserted into the receiver well without having to rotate the tabbed magazine into the receiver well.