These are Ed. Inter sound blocks. Some blocks and the wooden box are missing, so I would like to sell them as individual blocks. There are some paint stains (fading, perhaps...?) and dirt on the transparent parts of the triangular blocks. Please check the photos. Also, please feel free to ask if you would like additional photos or more details. Although they show signs of use, they are high-quality blocks that can still be enjoyed! I would be happy to deliver them to someone who understands that they are used items (o^ - ^o)