Double Deck Diamond Sieve with pouch, 41 plates #000 to #20 in 1/2 sizes, 80MM diameter 41 Plates sizes #000 to #20 in 1/2 size increments Plate Diameter 3 1/8" (80mm). Each Plate has the Plate Size and the MM size, example: 19.5 and 4.40 (on the reverse side). 2 decks meaning you can sieve through two sizes simultaneously, saving you time Includes zippered storage case