Uniball’s first Refillable roller pen Uni-ball 215 & Uni-ball 217, with QwikRefill Technology. Write up to 800 meters and exceed 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.Once you used up ink, you can replace with refill ""UBR-85. "
