New, Unused ☆ Immediate purchase welcome This is a security case for lithium batteries and valuables, designed to be fireproof and waterproof. It is said to withstand temperatures up to approximately 1000°C. Size: Approximately 20.5 x 13 cm Color: Black Material: Two-layer fiberglass + silicone coating *The photos showing the contents are of a case I purchased for myself. The item for sale is one unopened item (photo ②).