I am selling this item because I no longer use it. Product Name: HANDY HYDROGEN BOTTLE Body Size: Height 230mm x ø70mm (at the widest part of the base) / 270g Capacity: 500ml Material: Stainless Steel Color: Silver Price: ¥12,000 (excluding tax) ① Bottle initially supervised by Ken Okuyama, a world-renowned industrial designer. ② Body polished one by one by the highest level of polishing craftsmen. ③ Stainless steel and a unique method developed using the technology of Niigata Tsubame-Sanjo, the holy land of stainless steel, to prevent hydrogen from escaping.