uni-ball UB-215 Refillable Liquid Ink 0.5 mm Blue & Black Ink Roller Ball Pen  (Pack of 6, Ink Color - Black, Blue)

Uniball’s first Refillable roller pen Uni-ball 215, with QwikRefill Technology. Uni-ball 215 with its Super Smooth long lasting feature, gives you a new enriching writing experience. A Pen that writes upto 800 meters and exceeds 2 years. As same as conventional uni-ball, you can write until last drop of ink. Able to check the remaining amount of ink through barrel window.