Yep, those are handles, and the leather/cloth part wraps around the back of your partner's head. If you can't figure out the rest, you are an alien spy and have no business reading articles about this particular spin on human sexual behavior anyway. Quickly, flee back to Proxima Centauri, B'larrf, and please convince the Elders not to zap us just because your instruments happened to capture humanity discussing head wrap prisons bought by guys who are too gentlemanly to outright grab their partners' ears -- yet.
I doubt I would willfully imprison the head of a person whose teeth are within biting distance of my unguarded pelvic area, but that's just me. I'm not going to tell you how to live your life. Still, despite all the evidence piling up against this product, I must admit that I can see some use for it. Human beings rarely come pre-equipped with handles, so in a suitably friction-challenged environment (say, a shower), wrapping this thing around your partner's grabbable bits could in theory provide much-needed handholds, thus preventing undue dislocations and embarrassing E.R. trips. Maybe ... maybe that's what this thing is really all about. Maybe that stupid-ass name is just provocative marketing. So maybe I should give this thing the benefit of doubt after all. It's not as if it comes in a package that specifically instructs fuck-awful people to use it as a freaking blowjob handl-