Universal UNV39513 0.7 mm. Medium Comfort Grip Stick Gel Pen - Black Ink, Clear/Black Barrel (60/Pack)

I use these pens for daily for work and finding in bulk through the office supply store at a reasonable price became difficult. I found them on the Walmart.com website and now purchase them through it. I think a box lasts me around a year, so it is a good value. Out of the 2 previous boxes that I purchased, only one pen did not function properly, the other 119 were used until they were completely out of ink. The big box office supply store is now routinely losing my business for office supplies to Walmart.com because of price and selection.