SE GP2-12 Patented Stackable 13-1/4" Sifting Pan, Mesh Size 1/2" Diameter at top: 13-1/4 Mesh size: 1/2" Wire thickness: 1.4 mm Sifting pan (AKA a classifier or sieve) features our stackable design that sits nicely on a 5-gallon bucket U.S. Patent #: D666086