The Yakusugi Wooden Pen Case is crafted from Yakusugi wood, sourced from Yakushima Island. Yakushima is a World Natural Heritage Site known for its ancient forests and Yakusugi trees that are over 1,000 years old. This pen case, made from such a precious wood, is exceptionally rare. Yakushima is the only place in Japan registered under standard VII for its pristine natural landscape, which formed about 14 million years ago during the Cenozoic era. The pen case measures 6.5 cm in diameter and 9 cm in height. Owning this pen case means possessing a piece of natural history and timeless beauty.