There are many stains on the box. There are no scratches on the main body, but please purchase if you understand that this is a used item. Storm glass with glass and wooden base, perfect for weather prediction. - Material: Glass and wood base - Design: Teardrop shape - Function: Storm glass for weather prediction - Base: Square wooden base - Brand: Perrocaliente Tempo Drop is a unique glass object inspired by the storm glass, which was once used as a weather predictor. It is made by dissolving a mixture of chemicals such as camphor (extract of camphor tree) and ethanol in alcohol and sealing it in a glass tube, and it repeats crystallization with various expressions according to changes in the weather. In the past, the British government deployed instruments that combined a mercury barometer, a thermometer, and a storm glass called the FitzRoy Barometer, which was being researched by Admiral Robert FitzRoy, commander of the survey ship HMS Beagle, to fishing ports in order to prevent maritime accidents. It was used to observe the crystals that occur in response to changes in the climate. Although it is difficult to use it as a predictor in modern times, it has been reborn as an object that allows you to enjoy the changing appearance of the crystals every day, just like the scenery changes with the seasons. Perrocaliente Perrocaliente is a Spanish word that means hot dog. This name was given to the Japanese brand with the aim of creating products that are easy to understand and familiar. Thank you for viewing.