Great little screens for my Arizer glass tubes. They have a tighter mesh than the screens offered by Arizer. They also have a larger dimension than those screens and do not fit in the glass tubes without some form of modification. I form mine around a thin, unsharpened pencil, then put it into the end of the glass tube, and mash it down with the end of a thin marker. Sometimes it lays flat, but sometimes it is higher on one side, which makes for less herb fitting into the tube. Overall, I love the screens because of the tighter mesh, so that I don't inhale herb particles into my lungs. The only change I would ask for would be to cut them to the metric specifications of the glass tubes, and not US measuring specifications. Create them to match the product for which they were made.
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420EDC Response: We sell these screens for people to form on their own, just like you have. We already sell the OEM Arizer screens that are metric cut to fit the glass without needing to be formed, cut or manipulated. The ArGo size is more forgiving in this regard.