This is a set of 5 color brush pens. I've used them about 3 times and stored them in a pen case. I think they are still perfectly usable. The original plastic case is not included. - Colors: Sumi ink (black), Silver Gray, Crimson, Pine Green, Peony (black, gray, red, green, purple) - Quantity: Set of 5 - Brand: Akashiya - Type: Brush Pen Will be shipped with waterproof packaging. Etegami (Japanese picture letters) Watercolor Letters Drawing Art supplies Brush