Dr. Grip Center of Gravity Refillable & Retractable Ballpoint Pen, Medium Point, Navy Grip, Black Ink, Single Pen (36181)

I bought this pen because I kept getting an achy thumb joint at work. It has done the trick and my thumb no longer hurts after writing all day. Don't know how it works apart from being heavier at the writing end but I can recommend it.

Muy cómoda y muy padre

Grip of this pen is really amazing.one of the smooothest grip, I have used.ink is also nice.pilot people really know how to make pen.

I will not use another brand of pen after discovering these! The feel of the barrel in your grip is smooth, comfortable and functional. The design is clean, sharp - making it durable and able to withstand drops and even my dog thinking he can write as well. They write so smooth and the ink doesn't smudge. While the price isn't the cheapest on the market, they are worth every penny spent - I have purchased multiple to keep in different spots around the house, my purse, my travel writing bag, my desk and the fun part, you can purchase ink refills in different colors to change things up if you like! I currently have pink, burgundy, purple, blue and black and if I can find other color refills I will get them as well. I can't say enough good about this pen!

After countless hours of hyper-fixated AuDHD research, review scouring, a couple hundred dollars, and trial and error of some of the quote-on-quote “best pens” in the world. I can without a doubt say this has been the most comfortable, best writing and most reliable pen I’ve ever used. The only pen I’ve ever actually used (without losing) to the point I’ve had to replace the ink. At my Job, whenever I train a new employee one of my gifts to them is this pen (I’ve bought it several times) and they also become instantly put on, and can’t use anything else like myself. If you only ever buy one pen based on a Review make it this one!