Being an avid diamond painter, I didn’t like using the pink drill pens that come with a painting. I needed something thicker & more of an ergonomic fit for my hands. I was glad that I had been working with polymer clay for awhile & was able to come up with a prototype that I now use all the time. I really liked the process so I made more. These drill pens are great for anyone having an issue with hand pain or cramping from using a smaller diameter pen. They fit my hand comfortably & now I am able to diamond paint for a longer period of time. Yay! These pens come with a single placer on one end & a multi-placer or a straightener on the other end. See pictures for the options. These can be changed around if desired. They fit tight on each end but can be pulled out with pliers & replaced. They are not glued in. These pens are 5 or 5.5 inches in length from tip to tail end. Any questions, please let me know! Thanks for checking out my shop!! Happy Diamond Painting Diamond Painting Pen, Handmade, Polymer Clay, Drill With Multiplacer Or Straightener, Ergonomic, Purple & Blue Feathered Leaves