Made of Carbon fiber: very strong, but light and used many different fields, including airline, space, and sports. 10 times stronger than iron and its weight is aproximately a quater of iron. Hanko is a personalized name seal used in Japan since various centuries instead signatures to identify property. Square hankos are used as an organization seal such as Dojo, Club, etc. Round ones are normally for personal use. Why don’t you stamp your hanko on diplomas, letters or greeting cards? Make your unique hanko to make difference! You can choose hanko’s shape, material, model and size. If you want a totally personalized hanko or want your name in kanji, ask us! Each hanko is in a beatiful Japanese style wrapping. Ideal as a GIFT, too! Included stamp pad. MADE IN JAPAN.