I have one, but the name brand is long since worn off, and I can't remember it. Don't look for these items at Home Depot or L(the other big box)s or hardware stores. The only place you're likely to find one is at a nursery or landscape tool supply retailer or wholesaler. Go to the best local nursery you can find and ask the question. If they don't carry the item, they might know where to get them.
[This message has been edited by treebeard (edited June 08, 2003).]