Flieks 3 Piece Luggage Set Spinner Suitcase - TSA Approved - High/Low Temperature Resistance - 20/24/28in (Black) [New Material] Eco-friendly PET material, FDA's food-grade material standards, strong resistance to stress, Nontoxic, Tasteless, resistant to low and hight temperature, an innovation material in hard luggages. [TSA Approved] Allowing the US TSA to inspect your luggage without having to damage your locking mechanism. [Strong Resistance] 2-ton cargo truck rolled over test, PET will not be damaged and can restore to its original state [World Wide 5-Year Warranty] The features of anti-uv radiation and anti-aging ensure you to use the luggage for years. One set (3 pieces) will be shipped fits inside each other which offers more convenience and save much space for storage.