Everything from Glass Eye Studio contains ash from the 1980 Mt. St. Helens eruption. Handmade in the USA. Approximately 3" in diameter. All pieces are signed and presented with storycards in a keepsake box. All glass from Glass Eye Studio's Seattle studio is individually crafted by artists, not machines. Part of the Celestial Series - a marriage of science and art, as Glass Eye Studio designs reveal the mystery of these heavenly bodies.