Elemental Germanium Marking Normal Specimen (Ge) (10mm Cube, A, Face)

---------------------------------------------------------------------- 【Voltage Compatibility】 When using electrical appliances, please note that they are designed for Japanese voltage specifications (90-110V), so if you use them with a different voltage, it may cause a malfunction. 【Plug Type】 Our products use Japanese plug types (A or B type). Please use a conversion adapter if necessary. 【Important Note on Transformers and Adapters】 A transformer adjusts voltage to match your device’s requirements. A conversion adapter only changes the plug shape and does not adjust voltage. Using only a conversion adapter without a transformer may result in damage to the product. 【Liability】 We are not responsible for malfunctions or damages caused by improper use, such as operating the product without a transformer. ---------------------------------------------------------------------- [Product Overview] This is a 10mm cube with 99.999% purity. [Identification] (Front) [Atomic number, element symbol, English name, density], (Back) [Purity, atomic weight] [Appearance and Features] It has a silvery-white metallic luster. [Storage and Handling] It is relatively stable in air and hardly corrodes. It is very brittle and can crack or chip if subjected to impact. Please handle with care. [Other] A dedicated glass display case is included. These are elemental specimens for collection and display. There may be slight variations in the appearance of each product. We inspect each item individually and only sell products that are in good condition. However, if you are not satisfied for any reason, we would appreciate it if you would return the item. We will handle the return in accordance with Amazon's return policy.