YIN YANG Self Inking Mini Rubber Stamp Colop Round Decorative Teachers Stamps 12mm Self Inking Rubber Stamp With the Text "YIN YANG" Approximate Impression Area: 12mm | Brand: COLOP Stamp Production Time: 1-2 Business Days | Features a single -sided ink pad ; Pre -inked for thousands of impressions, Re -inkable INK COLOR: Black/ Blue/ Red/ Violet. You can select the required ink color from the given variation or mail me the ink color along with you customization details. You will receive "Usage & Care Instructions" with your stamp order as shown in one of the image.