Think of a coloring book, but made of fabric and big enough to cover your lap on the couch. Most models measure around 59 x 50 inches and come with a set of markers in the box.
The design is large, so it works well a little at a time rather than in one sitting. Several people can color at once, which makes it an easy activity for couples, friends or a family table.
Patterns range from flowers and fruit to cats, food or retro game themes. A busy pattern keeps you going for weeks, while a simple one can be finished in a few evenings.
What makes these blankets different is the washable ink. According to manufacturers, washable water-based ink comes out in a normal machine wash, leaving the printed outlines ready for a new round. Check the care label before the first wash.
Some people switch to permanent fabric markers for a finished blanket they want to keep as it is. Just keep track of which areas were done with which ink.
Two small tips before you start. Color on a flat surface so the fabric does not stretch, and close the markers after each session so they do not dry out. Testing a color on a small corner first shows how it looks on the fabric.
Many adults treat it as a relaxing hobby, something to do with their hands while talking or listening to music. As a gift, it works for people who like crafts but already have plenty of coloring books.