Trademark 200 13 Gm Pro Clay Casino Chips with Clear Cover Aluminum Case (Silver) They are crafted of a solid clay, with an inconspicuous metal insert allowing us to provide hotstamping for these excellent chips This handy chip case has the durability of an aluminum chip case and includes a clear, scratch-resistant plexiglass cover to easily view the contents of the case. This is a chip case that will last a lifetime