1.MAIN MATERIAL - Non-toxic and made from BPA free material. Please use it.2.Capacity: holds up to 15 eggs. Holds a dozen eggs.3.FUNCTION - Fits a whole dozen eggs, from medium to extra jumbo size. These eggshells are great for keeping eggs in the fridge, carrying them, etc. It also fits in your fridge and is easy to carry around if you are making devilish eggs.4.Convenient - It's a fantastic egg thrower, it will be so much easier to store fresh eggs from your farm. The small egg holder holds them securely and is strong enough to hold some weight on top. It's well made and holds a lot, including the larger eggs.5.SPECIAL - You can also stand up or lie down, which makes it easy to pack the fridge for a week-long camping trip. It holds 15 eggs safely surrounded by durable plastic.