DANIEL SMITH Watercolour - Ground - Mars Black - 118mLLet your imagination soar! For too long, the beautiful medium of watercolor has been confined to a paper behind glass niche. Now, with this exciting new ground, anything you have dreamed of painting with watercolor can become a reality. It's easy to use with a brush and is incredibly versatile. This colour is a dark black and provides exciting surprises when you use luminescent watercolours over the top.