Abstract: A document file comprises a front cover, a side flap, and two end flaps all connected to a rear cover by hinges. The side flap is connected in use to the end flaps by means of tongues formed on the end flaps which protrude through slits formed in the side flap. The slits are inclined to permit relative sliding movement between the flaps to vary the capacity of the file. Similarly, the front cover can be slidably connected to the side flap by engagement between tongues on the front cover with recessed edges formed in the side flap.

Abstract: A ring binder (1) comprises a sheet of polypropylene material divided by score line (2, 3) into front and rear panels (4, 6) joined by a spine (5). The binder includes a pair of binder strips (7), each of which has a partly circular head (8). The strips (7) and heads (8) are cut from the sheet material so that the strips (7) extend from the spine (5) at a position adjacent the score line (3). The strips (7) are associated with apertures (11) formed in spine (5). The heads (8) can pass through apertures (11) without deformation.