It seems to be some type of durable styrofoam to me. It's the Zoo Med Turle Doc. Here is a link to it: http://www.petsmart.com/product/index.jsp?productId=2752662
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It seems to be some type of durable styrofoam to me. It's the Zoo Med Turle Doc. Here is a link to it: http://www.petsmart.com/product/index.jsp?productId=2752662
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