The set is made of BPA-free hard plastic. Safe, odorless and durable, it will last for years. Wait patiently and continue to rotate the red and orange protector covers to align and open the built-in buckles. Tightly sealed and moisture-proof, your leftover food stays fresher longer. The perfect alternative to plastic wrap, perfect for storing cereals, legumes, crisper boxes, dried fruits, snacks and more and keeping them crisp, tender and delicious. Can be used to store items in the refrigerator, freezer or pantry. Food holders make it easy to identify and find, and reduce clutter in your refrigerator. Can be hand washed or top rack dishwasher washed. Compact, recyclable, reusable, bagless, deodorizing container for storing unused avocados, tomatoes, onions, lemons, limes and more. Package contains 1 onion saver and 1 tomato saver. Buying this set will save you time and money, and you can buy them as gifts.