USA Standard Testing Sieve, Wire Cloth Test Sieve, Stainless Steel Screen Material, Stainless Steel Frame Material, Mesh Size #3.5, Mesh Size Range Medium, Wire Dia. 1.6 mm, Opening Size 5.6 mm, Outside Dia. 12 in, Frame Inside Dia. 12 in, Overall Depth 1.625 in, ASTM E11 Standards