I have been buying Pentel Liquid Gel pens for several years. However, this past year, every pen I have used has broken into two pieces! The threads that hold the top portion to the bottom portion are so thin that the pen simply breaks into two pieces with the sprint catapulting the top part off the pen. When I try to screw the two pieces together to write again, the threads are so poorly manufactured that the pen fails to stay intact. I have thrown out the entire box of these pens as absolutely worthless. Hey, Pentel! Change your manufacturer, or you will lose thousands of customers who have paid good money for an inferior pen. I'll go to the Bic pens as better than these. At least Bic pens stay together!