The product is a set of vintage marbles made by Vitro Agate in the United States before 1970. These marbles are machine made and come in a glass flask, featuring a solid yellow and green color scheme. The set includes Chinese checkers and aggravation marbles, making it a fun and educational toy for children aged 8 and above, as well as a nostalgic collector's item for adults. The marbles are not modified and are a great addition to any toy or marble collection.See photos for actual items. Well protected when shipped. Shipped with USPS Ground Advantage Mail.