Uni Ball 145999 Balpen, AIR Micro, zwart, 1 stuk

price is for 1 single pen in black liquid ink colour The unique technology means the ball is held within a plastic, not metal, surround allowing for more movement and greater pressure variations. The uni-ball Air Micro allows you to vary the width of your writing like you can with a fountain pen without having to worry about leaks. waterproof Super Ink which makes it permanent and secure, perfect for professional documentation. Needs less friction when writing at an angle compared with other rollerballs / The more pressure applied when writing the wider the line you produce