Tokyo 15 Types of Rock Specimens Crystalline Science (granite, Diorite, Gabbro, Rhyolite, Andesite, Basalt, Mudstone, Sandstone, Conglomerate, Tuff,

---------------------------------------------------------------------- 【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. ---------------------------------------------------------------------- A set of 15 representative rocks (igneous, sedimentary, and metamorphic rocks) with explanations. Packaged in a plastic case. Case size: 180 x 93 x H20 mm. Rock size: approximately 20 mm. Set of 15 representative rocks (igneous, sedimentary, and metamorphic rocks) with explanations.