PRODUCT Specifications, π 1. Material: Food grade 304 stainless steel material+Food grade PP, π 2. Size: 8.6 * 17cm (3.3 * 6.6in), π 3. Printing: External bottle body print (bottle cap fixed transparent, bottle mouth and bottom full circle silver), π 4. Capacity: 20oz, , π FEATURES, High quality stainless steel double-layer vacuum structure, the cup body is made of food grade stainless steel outer layer material, Keep warm for 6 hours and keep cold for 18 hours, , π USAGE, 1. Minors should use it under the guidance or advice of adults, 2.To achieve the best effect of keeping the cup warm and cold, it is recommended to first add hot water or ice water for preheating or pre cooling. Adding ice cubes during cooling is more effective, 3. Do not add dry ice, carbonated drinks, soy sauce, soup, etc. to the vacuum cup to prevent corrosion of the cup body, , π CLEANING METHODS, Please use neutral detergent and warm water for cleaning, and do not use alkaline bleach, chemical cloths, or other cleaning agents, , π REFUND GUARANTEE, We are committed to providing the best customer service and bringing the best shopping experience to every customer, If you are not satisfied with our product, please contact us and we can provide a full refundβ