Made from plate glass, with carefully ground and polished optical surfaces and cleanly ground edges. Additional Info: Made from plate glass, with carefully ground and polished optical surfaces and cleanly ground edges. Package Size(L x W x H): 2 X 2.25 X 0.5 (IN) Categories: Optics, Lenses HTS Code: 9001.90.4000 UNSPSC: 3.12415e+007 Country Of Origin: CHINA