Tall form crucibles include lids. Crucibles are glazed on inner and outer, surfaces except for the outside bottom and rim. Additional Info: Porcelain Crucible Tall Form, 30ml, Pk/6 Package Size(L x W x H): 2.5 X 5 X 7 (IN) Categories: Crucibles, Porcelain HTS Code: 6909.11.4000 UNSPSC: 4.11222e+007 Country Of Origin: INDIA