I wonder how well they adapt to various ring gauges? You can find old time versions of this same idea on EBay from time to time. I'd be interested in a nice new acrylic one with pretty briar inlay that holds robustos and toros

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These are horrible times and all sorts of horrible people are prospering, but we must never let this disturb our equanimity or deflect us from our sacred duty to annoy and hinder them at every turn.