This is a great Mid Century Modern Large set of Blue colored grapes. These were sold at auction as onyx, but I believe they are some kind of lucite. Although they are not clear, they seem to be a heavy, hard plastic of some kind. They are a marbled blue color and have a black wooden stem. They are about 16″ long and 7″ tall at the front. Perfect for the Modern Home. These are coming back in style in a big way. This is a very large piece which is more of a rare find.