Tie wires are used by an instrument called the rotating hook,
especially made for this purpose. This instrument is designed for three
different lengths to tie up a total of 8-12, 14-16 and over 16 re-bars.
Reliable simple and eight shaped ties are made possible by using this
instrument. The tie wires are packed in bundles of 5000 pieces. This
hook can tie the looped tie-wires that come in the following sizes:
80mm for 8x8 and below
150mm for 8x8 to 16x16
160mm for 16x16 and up