CLEARSNAP ColorBox Fluid Chalk Inkpad. The ink in these pads is ideal for creating various color spectrum and direct to paper techniques. Also easy to clean and re ink. ColorBox pigment pads are water based and formulated to stamp on absorbent papers. Slow drying inks are rich thick fade resistant non bleeding acid free and archival. The ink surface is raised for optimum results on any size stamp. ASTM D4236 approved. Non toxic. Includes 8 colors. Pad measures approximately 2 12x4x34in. Made in USA.