Labalpha 35 Mesh Lab Sieves, Test Sieve #35 Mesh, 4'' Diameter, 304, 0.5Mm This is an industrial sieve with standard mesh. The sieve frame is a good thick stainless steel, nicely and evenly finished. Both the sides and screen are made of stainless steel. The screen is encased top and bottom by the frame. The screen is sturdy steel with almost no give to it. Secured well in the frame. The mesh is good quality and even. It is heavy-duty and durable, does not dent easily and is very easy to clean. SIZE - 35 mesh test sieves,304 stainless steel lab sieves,aperture lab sieve,10cm/4" diameter, 4.5cm/1.77'' height. PREMIUM MATERIAL - The lab sieves made of double-layer frame 304 stainless steel fine mesh,strong corrosion resistance. WELL-MANUFACTURED - Standard 304 stainless steel screen mesh,uniform and precise aperture,easy cleaning. Durable - High temperature and low temperature resistance,corrosion resistance,smooth edge,lightweight but strong. APPLICATION WIDELY - Ideal for straining powder,aluminum,zinc, sand,soil and other impurities, even setting for filtering organic liquids in lab.