Strictly Ceilings Suspended Ceiling Grid Tie Wire is galvanized for corrosion resistance and is available in pre-cut 28" lengths for quick installation. These wires are great for short hangs of 24" or less and are very flexible and easy to tie off. These wires are straight not in a roll as to eliminate the "Spring" affect that occurs in the roll wire. It is recommended to purchase 16 wires (minimum) per 100 square feet of installed ceiling grid in Residential applications. 24 wires per 100 sq ft for commercial applications.