These are aluminum coasters made to set a used coffee filter on. These could also be used to place a used teabag on. I believe these are from either a restaurant or possibly a train. These accompanied an aluminum single use coffee filter which would allow a cup of coffee to be made at the table. Price is for one coaster; select either the Melitta marked one or the Zum Absetzen des Filters.
Weight with packaging: 0.05 kg (Make the most of DHL shipping, learn more here.)