Designer YAMAZAKI Yoshiki collaborates with Onami to introduce two unique coasters that made of aluminium created by metal spinning technique. They are just the right size to use with any glass to enjoy a drink or to be used as a tray on which to put small items such as keys, jewelry, coins etc. Drinks are really easy to carry around as aluminium is a very light material. The aluminum coaster does not have any finish on its surface. Therefore, the surface will tarnish in time. The KURO-MURA black finish makes the products something like an ancient excavated items. This is a traditional method used for Buddhist altar articles, which mixes pigments with Japanese lacquer, URUSHI. The product gradually changes its color over the course of years due to oxidization. The longer it is used, the richer and subtler it becomes.