This product is a lot of over 200 vintage marbles from the 1970s, some made by Akro Agate in the United States. The marbles are glass and come in various styles, making them a diverse and unique toy collection. With a mix of colors and designs, this set offers a nostalgic touch for collectors or enthusiasts of vintage marbles. Some of the marbles are chipped. I found this lot at an estate sale. I'm not too savvy about marbles, so my apologies for not knowing more details. Please see photos for condition and details or feel free to message any question you may have before purchasing! Final Sale. Also, I will not cancel your purchase if you accepted or sent and offer. Serious buyers only!