It arrived before the email and is fab!  We walk on a lot of MOD land where there are no bins at all, so very handy.  I think I heard about it from a dog magazine, when I was first researching my puppy.  Dogs Today is the most likely candidate.  I filed it away in my brain for future reference, and you were pretty easy to find via Google when the time came.  I walk greyhounds for the RGT and am seriously considering buying the large size for that :-).

Anne