This rocks glass is made from Niijima glass, a unique volcanic glass made by melting kogaite (a fireproof stone) that is only found on Niijima Island and the Italian island of Lipari. Niijima glass is a natural colored glass that takes on a clear, beautiful olive color due to the iron contained in the kogaite, and is a specialty product of Niijima, which has a geology that is rare even on a global scale. Enjoy the beautiful olive green of Niijima, which captivates both those who see and use it.

*Please note that each item is handmade, so there may be slight differences in color and shape.

[About handling handmade glass]
■When using it for the first time, please wash it with a neutral detergent before use.
■Because it is handmade, there may be variations in color, pattern, shape, weight, etc.
■If it gets scratched, it will be easily damaged.
- Handle the glass carefully to avoid hitting it with other glass or hard objects.
・Avoid using metal scrubbers, cleansers, etc. that may damage the glass when cleaning.
・Do not throw hard objects such as knives, forks, or spoons into the glass.
・Please avoid using the dishwasher.
■It may crack due to sudden temperature difference.
・Do not pour hot water into cold glass, do not put cold objects into warm glass, or place it in a wet place.
・Do not use on open flames, ovens, microwaves, etc.
■When storing, please do not stack it with other items.
・There is a risk of it being damaged or not being able to be removed.
■Please be careful when washing the inside surface of the glass.
・If you apply force from the inside and twist it to wash it, it may break and cause unexpected injury.

*About BEAMS JAPAN original wrapping service