I'm working on a prototype device, and I'm currently figuring out the form factor. On the turn indicator of my car, there is a ring with several positions that will control the lights. I'm thinking that something similar would work well on the handle of my device, and I'm looking to purchase this component to test it out. The problem is I don't know what to call it so I can find one. A rotary switch is a different thing entirely. Can anybody help? I'm looking for a rotating cylinder switch with at least 7 positions. What would this be called, and where could I get one? Thanks! -Mal.