I have noticed that since I have been doing more and more writing, my fingers have been cramping and I'm starting to develop blisters on some of my fingers. I ordered these in hopes of them protecting my fingers and so far, they have been amazing. I have a few pens that the hole is too small but with a little widening of the grib, I'm still able to use them. And the various designs that come in this pack are amazing. They all serve the same purpose but some of them feel better on different writing utencils. My son loves some of them too, especially since he has the same problem with his fingers and I do but still insists on using wooden pencils.