4 Holothuroidea (sea cucumber).

• Material: Blackened iron
• Weight: 115 g
• Vertical height: 79 mm
• Horizontal width: 79 mm
• Thickness: 5 mm

This Tsuba is part of a high-end series (from TM018 to TM029) and is made of a traditional Tetsuji Iron, blackened with special iron lacquer. The process is optimized to obtain a result that reproduces ancient Tsuba as they were when new. To limit the cost, the cut is mechanical but hand-guided. The iron black lacquer is done by a specialist, similarly to how it is done on other swords parts or Yoroi (armors).