Bamboo interchangeable circulars

For those of you who really like bamboo needles or need more choices in interchangeable needles, I just received this in an email from Paradise Fibers.http://http://www.paradisefibers.net/KA-Classic-Bamboo-Switch-Exchangable-Circular-Need-p/464894.htm
I remember reading posts from people wanting connections that swivel. These are supposed to.