BLACK water based Re-fill Ink for Xstamper ClassiX Self-Inking Stamp refill 2oz` Xstamper ClassiX Self-Inking Stamp refill 2oz Uniformly refill your Xstamper ClassiX stamp. Refill ink provides optimum performance for all your Xstamper ClassiX stamps! Available ink colors are RED / BLUE / BLACK / GREEN / PURPLE 2oz