Novofine insulin pen needles 4 mm 31G 100 pieces

Sterile, disposable insulin pen needles with a length of only 4 mm in order to avoid the risk of performing injections into the muscles . Sterile Insulin Needle Specifications: ✓ Size only 31G (about the thickness of two human hairs) to reduce pain. ✓ Unique design reduces the risk of the needle being twisted and broken.