The Portable Lock-Shaped Insulated Cup is a high-performance drinking container designed for modern living, ideal for daily use and outdoor activities. This insulated cup features a 316 stainless steel interior and a 304 stainless steel exterior, complemented by food-grade PP materials, ensuring that your beverages are safe and non-toxic.With a 400ml capacity, it perfectly meets everyday demands, keeping both hot and cold drinks at their ideal temperature. Enjoy healthy beverages anytime, anywhere, with this stylish and functional insulated cup!