The Tissue-Tek® Mega-Cassette® System (size 40 x 25 x 10 mm) is designed to provide specimen identification and security from the grossing bench to the permanent paraffin block. Suitable for larger tissue samples, thanks to the depth (10 mm). Each cassette system is optimised for maximum fluid exchange during the processing cycle. When utilised with appropriately sized Base Molds, the cassette becomes the supporting structure of the paraffin block during embedding. Cassettes come with an attached lid.