Do you mean top-bar hives? If so, those are nice. I built a couple a few years ago, although they got hit by colony collapse. I built mine with hinged lids and anchored them to posts in the ground. It was nice being able to tend the hive without any heavy lifting.
Thanks for the info...that will be music to my wife’s ears. I’ve got to go to the lumberyard, thanks again :{)
Looks like a very expensive, proprietary top-bar.
http://www.beepods.com/product/beepod-top-bar-hive