Special hinge design locks the cassette and lid firmly together and allows frequent opening and closing of the lid without risk of sample loss. Made of P.O.M. material, 100 % resistant to chemical reactions of histological solvents. With rectangular holes measuring 5.0 mm × 1.0 mm. With two large labeling areas on the cassette sides and a beveled front with a 45° inclination, compatible with most cassette labeling systems.