These reusable floss handles......all have such a poor design, I can't believe it. (Oh wait, yes I can...since life is at least 90% observation of how infuriatingly, unacceptably far nearly everything and everyone are from what they ought to be...of course in an ideal world you wouldn't even need an ideal one because you wouldn't be imprisoned within such a sickeningly vile, senselessly illogical thing as what's called a body...but I digress?) Having to toss the handles every day blows, but I need them and there seems to be no alternative. (I mean, you shouldn't need to do this sort of nastiness at all, including eating...if you must be trapped the least it can do is just take care of itself with minimal effort from you its prisoner, and quit being such a pathetic, repulsive, completely nonsensical piece of high-maintenance trash...!!) *ehem*First, this is way too big. Why is it so much larger than the disposables? (Doesn't always feel like it and some have said otherwise, but according to *dentists* "I gotta smaallll mouth, Alice!") Second, it tells you start with "about 16 inches of floss," which is a wasteful amount versus the disposables' single inch. It makes you wrap around the knob, go up the groove, notch twice, down the other groove, and wrap around again. Why can't an obvious version be devised where you simply stretch and snap/click an inch of floss into the standard disposable handle? That's what I expected when the dentist said that they make reusable ones, which I'd never found before--so it was simultaneously exciting and baffling to hear that. Surely there has to be an improvement over this. You can hold it upside-down and do the top, but the floss will never remain notched for the bottom. So you need a disposable anyway. Whomp, whomp....And after one more attempt, the rating is confirmed: It's a huge time-wasting, floss-wasting pain, and a waste of plastic itself. One of those things you look at and can tell isn't gonna work--too overcomplicated and awkward. How such a good idea could get so horrendously screwed up is beyond me. At least each try was a different story. ("Floss doesn't remain taut. Floss doesn't stay notched for one go. Tough to tell how much to pull out before looping. Floss gets stuck around knob and takes at least five minutes of cutting and fighting to remove...") In short, don't bother. Stickin' to the disposable 'til those become reusable.1