ブックバンド

noun

book strap; book band

A strap or band used to hold books together, often for carrying or storage. Wasei-eigo from English 'book band'.

wasei-eigo (Japanese-coined English), from book band

• 図と書しょ館かんで借かりた本ほんをブックバンドでまとめた。

  I bundled the books I borrowed from the library with a book strap.