These slide warmers are designed for cytology, histology, and other biological applications in industrial and clinical lab environments. Uniform heat transfer over entire heating surface. Anodized black heavy gauge aluminum worktop resists corrosion and provides high-contrast background for viewing specimen. Powder coated heavy-duty steel body construction is durable and easy to clean. Slide capacity of sixty-five 1" x 3" or thirty-two 2" x 3" slides. Thermostat-controller regulates temperature to 65°C.