Bought from: http://myworld.ebay.co.uk/karen100000/Good Ebay seller.
Good Item, but the red top gets pecked and can easily be removed by hens. spillage can occur.
Water feeder not bad seemed to do its business.
The plastics seem to be flexible enough to give a little, which is necessary as you have to twist lock the tops to the bottom. I was a little hesitant that it may be brittle and break, although I still suspect that they could break or crack after a while.
update : been using for 2 weeks they have been fine and not broken, they are ok.