Experience virtually painless insulin injections with SFM 31G insulin pen needles. These ultra-fine needles (0.25 x 5mm, 100 count) are designed for comfortable, discreet subcutaneous insulin delivery. Manufactured with a unique thin-walled design and enhanced lumen, these needles ensure smooth injection and minimize discomfort. A triple-laser sharpening process further refines the needle tip for optimal performance.





