Safe and Durable:Made from premium 304 food-grade stainless steel, this cup is non-toxic, corrosion-resistant, and suitable for both hot and cold beverages. Whether it's coffee, tea, or ice water, this cup ensures a healthy drinking experience. The surface is finely processed, durable, and resistant to aging Double insulation:Featuring an innovative double-wall insulation structure, this cup effectively isolates external temperatures. It keeps drinks hot for hours in winter and cold for hours in summer. The outer surface remains dry and condensation-free. Leak-proof Design：Equipped with advanced leak-proof technology, the cup's lid and body are tightly sealed to prevent spills. It’s perfect for use in cars, offices, or outdoor activities. Eco-friendly and Reusable：This stainless steel cup is reusable and eco-friendly, reducing the need for single-use plastic cups. Made from high-strength stainless steel, it is durable, shock-resistant, and rust-proof. Suitable for car cup holder：This 20oz stainless steel car cup is designed to fit securely in most standard car cup holders, ensuring a stable and safe driving experience. 1