This beautiful model has dimensions of approximately 4" x 4" x 4" and is made entirely out of solid wood balls. Each ball was hand painted twice for durability. Then the entire structure is adhered together with 1/4" solid wood dowels in the correct pattern and size ratio of the salt crystal. This model will last you a long time if properly cared for. The model was designed, engineered, and manufactured by teachers for teachers in the United States of America by: Mercury Manufacturing of Texas. A teacher owned company.