Nice review, but note that Submitted by Peru Wangdu on April 30, 2018 - 3:26pm Nice review, but note that only blue, black, red and green inks are waterproof/fadeproof. The pen is also available in ultra micro (0.38 mm ball), UB-150-38 (black, blue, red only). reply
Nice review, but note that only blue, black, red and green inks are waterproof/fadeproof. The pen is also available in ultra micro (0.38 mm ball), UB-150-38 (black, blue, red only).