Constructed from ABS / PP and equipped with strong magnets, these clips withstand temperature variations while maintaining a firm holding on metal surfaces for great food storage Ideal for busy households, meal preppers, and parents seeking a efficient way to label leftovers, snacks, and freezing goods while minimizing kitchen clutter Keep your food freshing and organized with these sealing clips featuring built in date trackers, securely attaching to refrigerator surfaces for instants access and effective pantries management Simplifying kitchen routines with color coded date dials and sealing technology, ensuring food and reducing waste through organization storage dates on resealed chip bags in pantries, secure snacks packets on fridge doors, or organize freezing vegetables in freezers with these space saving organizers