These stylish Uni-ball Jetstream rollerball pens make a great choice for those who love to write in comfort. These pens feature tamper-proof uni Super Ink, which will not wash off when immersed in water, acetone, glycerine, bleach or other chemicals used by document fraudsters. Each pen also produces dense, vibrant writing lines and dries faster than your average rollerball pen. This pen is also refillable.