Take your food storage to the next level with the EcoSystems 4.5"X4.5" Square Inside Fit Lid. Made from rPet; this lid provides complete visibility of your delectable treats while securely sealing your containers to prevent leaks. Its durable build and water vapor barrier ensures a prolonged shelf life for your culinary creations. With its versatility, this eco-friendly lid perfectly fits five different-sized containers, promoting resource conservation.