Excellent quality, ingenuity: Each Stone thermos cup is the unremitting pursuit of superb technology and excellent quality. From material selection to production, from design to finished product, we strictly control every link to ensure that every detail is to the extreme. We use food grade stainless steel materials, combined with advanced insulation technology, to create a safe and efficient insulation effect. At the same time, our design team continues to innovate, combining fashion elements with practical functions, adhering to the concept of sustainability and eco-friendly, making each thermos cup a unique work of art.