This is Seller Mate's "Sealed Jar with Handle." It allows for airtight storage thanks to its excellent degassing function and is a glass container made with rust-resistant stainless steel. With a wide mouth of 8.6cm, it's easy to put ingredients in and take them out, as well as pour liquids. The silicone packing and metal fittings can all be disassembled and washed, keeping it clean. Features: This glass container has excellent sealing and degassing functions, making it suitable for making fruit liquors like plum wine and preserving pickles. Materials: The body is made of glass, and the metal parts use rust-resistant 18-8 stainless steel. Uses: It can be sealed with a silicone packing, preserving the freshness of food for long-term storage. Diameter: Approximately 8.6cm Height: Approximately 10.7cm Weight: 550g Materials: Body/Lid...Soda-lime glass / Packing...Silicone rubber / Fittings...18-8 Stainless steel Country of Origin: Japan [Condition of the product] It has been used a few times, but it still seems like it will be useful.