
There are lots of cheap copies advertised, which I wouldn't touch with a bargepole.
I will only use the original TabBands. They started in the states, in hospitals (human type), but soon became such a success that veterinary practises started using them.
I use them on very tiny pups with no problems, ever! All size dogs are catered for. there are only a couple of places that have the genuine originals over here, but for anyone that would like to read about them, I found my original information on this site about 6 years ago. Haven't used anything else since.
Can recommend. :-)
http://www.tabband.com/item.asp?iid=16