I'm looking for a 12ft t0 15ft chain or metal twine that be cut to lock up my lawn equipment in my shed in case shed is broken into. This must be coated with plastic so it won't scratch. It can be used with a lock, or it can have a tumbler on it to access with a code. Thanks. Or if you have a better idea. I have heavy chain on it now, but it will scratch the equipment and is heavy.