This micro-sieve set consists of a stack of four interchangeable screen-holding sections, a catch pan, and a friction-fit cover. The entire unit is molded of poly-propylene. All of the parts of the set are very easy to take apart for changing the mesh insert or for cleaning. Complete with the unit are phosphor-bronzed mesh inserts in the following sizes: 25, 35, 45, 60, 80, 120, 170, and 230 mesh. The holding sections are 2" (51 mm) ID x 6" (152 mm) H.