INKADINKADO-Chalk Ink Pad. Create beautiful blending effects and soft muted colors on all your paper crafts! Chalk ink dries quickly, leaving a permanent, waterproof, chalk-like finish. This ink will air-dry on porous surfaces but heat setting is recommended for use on glossy paper and other surfaces. This package contains one 3-1/2x1-7/8in ink pad. Available in a variety of colors: each sold separately. Nontoxic and Acid free. Conforms to ASTM D 4236. Imported.