High-quality materials: Made of food-grade polypropylene (PP) material, durable double-walled plastic, reusable and easy to clean. Eco-friendly, non-toxic, BPA-free plasticizer. Transparent cup: More durable, you can clearly see the inside of the cup. Pour cold drinks and add ice cubes of different colors 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 a 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 standard-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 vacation, our double-walled mug is a great choice. Suitable for all occasions, such as picnics, parties, travel and as a gift.