Giddy-Up Blendy Pens Pen El Grande Activity Kit These are some of the most unusual and innoveative coloring tools around, designed to bring out the artist in everyone Blendy pens fuse colors for shading and special effects Giddy Up creates unique and clever products that are a blast to play with Insert any two Blendy Pens into the fusion chamber and twist. In real life, colors blend -- so why shouldn't your marker pen Includes 12 original Blendy Pens, 10 Mini Blendy Pens, 6 Smelly Blendy Pens, 6 Magic Blendy Pens, 1 detail pen, 10 large posters, and 10 small posters