EcoQuality tamper-resistant clear-hinged, tamper-evident pet containers come with built-in protections.  Features Microtrim edge contributes to tamper resistance by preventing improper opening. Leak-resistant perimeter seal completely seals the tray for maximum freshness & prevents leaks. Safeseal tamper-resistant, tamper-evident pet containers. The tamper alert hinge protrudes outward when torn, alerting that the container has been opened.