Name: Standard Lab Test Sieve Material: Mesh Screen Material is 304 Stainless Steel. Outer Frame Material is 304 Stainless Steel. (Outer Frame Material also have chrome plated metal, it is cheaper, but just can fit daily household use, if you use it Science Laboratory Test, it is recommend to choose 304 stainless steel.) Size: Diameter 40cm, Height 7cm. (Diameter 5-60cm all in stock) Mesh Count: 2, 3, 4, 5, 6, 8, 10, 12, 14, 16, 18, 20, 24, 26, 28, 30, 32, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 90, 100, 110, 120, 130, 140, 150, 160, 180, 190, 200, 220, 240, 250, 280, 300, 320, 325, 340, 360, 400, 500, 600, 800, 900, 1000, 1800, 2000, 2300, 2800, various mesh count all available. You can choose it by Size . Mesh Count is the quantity of the hole in 1 inch. For example: if mesh count is 2, then the hole size will be 1/2inch, approximately equal to 12.5mm. The larger the mesh count, the smaller the mesh hole size. In addition: Top Cover & Bottom Tray not include, if you need it, please buy separately via ASIN: B0CWL2ZT5J Large quantity in stock, More quantity, Less price. Material: 304 Stainless Steel Outer Frame + 304 Stainless Steel Mesh Screen.(Outer Frame Material also have chrome plated metal, it is cheaper, but just can fit daily household use, if you use it Science Laboratory Test, it is recommend to choose 304 stainless steel.) Size: Diameter 40cm, Height 7cm. Mesh Count: 2, 3, 4, 5, 6, 8, 10, 12, 14, 16, 18, 20, 24, 26, 28, 30, 32, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 90, 100, 110, 120, 130, 140, 150, 160, 180, 190, 200, 220, 240, 250, 280, 300, 320, 325, 340, 360, 400, 500, 600, 800, 900, 1000, 1800, 2000, 2300, 2800, various mesh count all available. You can choose it by Size Mesh Count is the quantity of the hole in 1 inch. For example: if mesh count is 2, then the hole size will be 1/2inch, approximately equal to 12.5mm. The larger the mesh count, the smaller the mesh hole size Difference between Chrome Plated Metal and 304 Stainless Steel : The color of the chrome plated metal is brighter than 304 stainless steel, The 304 stainless steel is more durable than chrome plated metal. Color Silver Material Stainless Steel 304 Brand Name TAMSOI Part Number SI a-163_18 Manufacturer Htong Industry Model Number SI a-163_18 Number of Items 1