31g-5mm

Used with insulin pens. I had no issue with them, and the value was far better than from a pharmacy. There's no difference functionally between these and the pen needles you've used until now. Give them a shot. Pun intended.

These fit my insulin pen perfectly. They don’t hurt when I’m injecting and are easy to attach on and off. Highly recommended.

These needles are sharp, thin, and painless, like most pen needles, but the cap for the needle and the needle base are wide, so it is much easier to put the cap back on without sticking the needle through the side of it. Not going back to the old style. These are much less expensive too!

worked for the person who needed them, fit their pen and had no issued with the quality.

Smoother insertion, holds needle stable and flush, clear/opaque universal fit. Less pain, time, perception of fluid force, (m*l than smaller (higher Gauge), resulting in quicker administration. Remember to rotate injection sites.Prefer these to any other pen needles

Worked very well as used for daily injections.

I love these! These were better for me than the ones I got from the pharmacy. I have these on reorder.

Comfortable and seem like a good batch. Will order more