grinder with glass collection pot. integrated sieve. the rest of the grinder is made of metal and silicone. color blue. material glass metal silicone colors blue specificities glass metal and silicone grinder 4 parts blue glass recovery pot integrated sieve robust airtight fully removable: easy cleaning weight of the grinder: 165 g dimensions glass metal and silicone grinder 4 parts blue diameter x height (cm ) 6 x 9 cm