Stainless Steel Vacuum Flask Double Straight Cup Business Office Gift Cup Durable Insulated Advertising

Product category: vacuum flask Liner material: 304 stainless steel Thermal insulation performance: 12-24 hours Material: inner 304 and outer 201 Applicable scene: outdoor Shell material: 201 stainless steel Capacity: 500ml This universal product is designed for daily use, suitable for a wide range of scenarios. It is made with fine workmanship and strict quality control, ensuring stable performance and good durability. Simple to operate and easy to maintain, it is a practical choice for daily life, meeting your various daily needs.