Thank you for viewing. My son used this a little in high school. I'm not sure of the exact usage, but it seems like he barely used it, and most of it is left. The box has some stains, but the rest is clean. Please note that this is a used item and no claims or returns are accepted. Holbein Acrylic Gouache (opaque, acrylic resin paint) 20ml laminated tube 12-color lesson set D410 Price: 3575 yen