Set of 3 Mazda vacuum tubes From left: - Model: 5M-K9, 1 tube Part number unknown, 2 tubes - Brand: Toshiba - Type: Vacuum tube - Condition: Believed to be unused. Found in the storage of my parents' house, the outer boxes show signs of aging with dirt and tears. Please check the photos. Performance is not guaranteed due to long-term storage. No claims and no returns accepted.