ITEM NAME:Insulating Firebrick Fire Brick Jewelry Making Processing Casting Tools Description: Material: Ceramic Size: 13.6 x 9.7 x 1.2cm / 5.35 x 3.81 x 0.47inch Unique honeycomb design refractory brick. Refractory welded plate jewelry processing tool. Capable of withstanding temperatures that range up 2000Â ºF. Package Includes: 1 Piece Fire Brick Note: Please allow 1-3mm error due to manual measurement.Thanks. SKU: FUZ0026760756045468.1 Piece Fire Brick. Unique honeycomb design refractory brick. Refractory welded plate jewelry processing tool. SKU: FUZ0026760756045468.