Chameleon Color Cards are designed for use with alcohol inks but they work great with most art supplies. Along with the images, also included is a color guide that helps teach how to create dimension, shading and texture. This is what really sets Color Cards apart. These aren't just fun coloring activities...they are a great learning tool! 4"x 6" Zen 16pc- Contain 2 copies each of 8 designs that include abstract flower designs, leaf designs, and other nature inspired patterns.