Size of trilobite Foulonia - 53x49mm max. Size of matrix - 113x96mm max.All photos are enlarged for you to see more details, please check the descriptions for actual dimensions. For an idea of the real size I take pictures on my hands. Fossils By Joseph Store was created with a vision in mind. A vision that all people deserve to feel the magic and wonderment of receiving items that will give them pleasure. Should you have any questions about our items at Fossils by joseph or anything else, please feel free to contact me. Thanks for your visit and happy shopping! Please message us for details if needed. So I try to combine all your orders into one package. When you win multiple auctions, I add bonus. We only accept the unopended/unused products. Our team will do our best to solve any issue.