Dynarex LabChoice Embedding Cassettes are designed to provide a safe, protective environment for tissue samples during processing and embedding. These Cassettes are made of sturdy, chemical-resistant plastic for optimal reliability. The Cassettes are available in a choice of rectangular or square hole designs to efficiently promote fluid flow and tissue containment. For effective tracking and identification, the cassettes include two labeling areas on the sides and a slanted front surface. The convenient tab on the lid allows for easy access and improved handling.   500 PER BOX, 4 BOXES PER CASE