Uni-ball Signo Dx Um-151 Gel Ink Pen - 0.38 Mm - 10 Pcs - Black - Uni Mitsubish
The barrel and tip are a bit sturdier than the Hi-Tec-C, which might explain why converts love them. Like all our other pens, the Uni Signo DX is highly sought after by artists and writers alike, but difficult to find in the US.