Teifoc® is a German trademark offering a unique construction and game system that uses real, reusable bricks. They are made of roasted clay and are completely safe to play. For bonding agent, use soluble sand and corn extract to allow reuse of the construction kit - to build a new model, simply soak in water and dry the bricks. Teifoc® products are designed and manufactured by Eitech GmbH in Germany.