316 stainless steel（Inner）304 stainless steel（Outside）Food grade (Cover) PP Food grade（Hand shank）Food grade silica gel（Sealing water）
How to use
1.clean the product with mild detergent before using;
2.tight up in clockwise rotation after pouring water;
1.Please keep away out of reach for Children to avoid scalding or other hurting;
2.Heat preservation effect is better if water is filled to the neck line below 1cm of the stainless steel liner mouth.
3.Please do not overfill with hot water to avoid scalding or contamination of clothes