A twist tie is a fastener made of one or more metalwires encased in a thin strip of paper or plastic, in such a way that it can bend and retain its shape. Wireless polymeric twist ties have also been developed.[1][2][3]
^US US7011879B1, Contaras, "Composite polymeric twist tie", published 2006
^US US6663809B1, Haddock, "Wireless polymeric twist tie", published 2003
^US US6663809B1, Haddock, "Wireless polymeric twist tie", published 1992