cotton, viscose warp end, w (total) = 12 mm, w (warp end) = 2 mm
The small, mostly coloured cloth borders that cover the upper and lower ends of a book spine are called headbands. They were formerly hand-pierced and sewn and therefore served as additional stabilization of the spine. Industrially manufactured headbands, however, no longer serve this function but are now purely decorative. In addition to its bookbinding use, these reasonably priced colourful bands are also great for gift-wrapping and basic decoration purposes.