Are you looking for an affordable vivarium to use in your classroom? These all-glass models provide students with unobstructed views of plants, animals and any other materials you place inside the unit. The sturdy glass panels are permanently joined with clear cement. In addition, fitted plastic molding on the top and bottom provides protection for your students against sharp edges. The double-galvanized steel mesh cover is mounted in an attractive walnut-finished steel frame, and locking clips allow the cover to fit snugly over the top of the tank.