... Double spiral coil or Double Loop Wire Binding, also known as Spiral Binding Wire,Twin Loop Wire, Double-O® Wire, Wire-O, and WireBind, is ... that creates lie-flat books, open or closed. Double Loop wire bound books open flat and turn 360 degrees. Create professionally ... easy to distort, has stable quality , low wastage. Double Loop Wire Binding provides a sophisticated look for documents up to 220 ...