The Seal'N Freeze® Box and the Cryotray® Embedding Molds are designed for the cryogenic freezing (snap or flash freezing) of histological tissue samples, primarily for use in cryostat sectioning. The Cryotray® consists of 4 cryomolds designed for batch processing of multiple samples and storage protection. The Seal'N Freeze® Box allow optimal temperature for freezing of tissue samples in OCT Compound using liquid nitrogen or dry ice with ethanol.