Anyone labeling with GLP-1 pens?

Hong Kong Yanpep International
That's odd. You're putting 20x40 labels on your 3ml vials, right? Mine are 40x20 holographic ones from amz and they stick and fit great on 3ml vials. You could share a photo of how yours sit on the vial.
 
I go with 40x20mm for vials myself, but for pens there's a smaller 25x9.5mm label size floating around online that should fit pens just fine.
 
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