This Frit Maker allows you to make an assortment of frit and powder from scrap glass. Heavy duty, all steel construction. Magnet included. 152mm x 152mm x 305mm (6" x 6" x 12") The two piece mortar and pestle will produce a batch of frit in 20 to 30 seconds. The crushed glass makes a full assortment of frit from powder to course.