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Title: Really, really, really bad.
Review: Glasser makes the crappiest product I have ever used in my life. I have to use a wrench to tighten the nut, because the threading on their frog screw is so coarse, that you can never get a proper fit between the frog (the black part) and the stick (the brown part). And so the nut is under constant pressure and impossible to turn.I had to buy one of these recently, when my bow had a problem right before a gig. Worst money ever spent.Do yourself or your students a favor and avoid these at all costs.
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