Honestly, rubber bands work just as well and you can get those anywhere.

Tom

Personally, I hate rubber bands and swear by twist ties. They're much easier to get around carrots and beets which often have tall tops and bulky roots. I special order them through the local health food store. I can't use the ones that say "organically grown" anymore, so I get the red ones that say "locally grown". Sorry, but I don't remember what I pay for them, a case sure does last a long time.
-Mark

I use a spool of twist ties that are made for tying up tomatoes. are green and have a cutter right on package