High-quality materials: Made of food grade polypropylene (PP) material, durable double-walled plastic, reusable and easy to clean. Environmentally-friendly, non-toxic, BPA-free plasticiser. Transparent cup: It is more durable, you can see the inside of the cup clearly. Put cold drinks and add ice cubes of different colours to the cup to make your juice look attractive. Easy to clean and carry: All cups with lids and straws can be reused. The transparent cup combines lid and straw to seal the lid tightly and prevent leakage at the edges. Very suitable for hot summers. Comfortable to hold: The double layer insulation keeps the drink cooler, fits most normal size cup holders and is suitable for adults and children. This cup is also ideal for children's birthdays. Wide range of applications: Whether at home, at work or on holiday, our double-walled mug is a good choice. Suitable for all occasions, such as picnics, parties, travel and as a gift.