Experience BLX from Uni-Ball! BLX ink is black ink tinted with color and gives a sleek, sophisticated take on your writing. Uni-Ball’s current blue-black ink outsells blue ink 2-1 and the new BLX colors will drive sales with pen enthusiasts looking for the next unique thing in writing. BLX writing system is now available in blue-black, red-black, brown-black, purple-black and green-black. Contact your MacPherson’s sales rep for more details on the SA1862366 -Uni-Ball Vision Elite BLX Pen Assortment Display.