Premium 304 stainless steel, BPA free; Durable and Healthy, Hygienic, No metallic odor.
Thermos vacuum insulation technology for maximum temperature retention keeps hot for 24 hours and cold for 24 hours.
Double-wall vacuum insulation retains hot or cold temperatures.
Durable stainless steel interior and exterior.
Cool to the touch with hot liquids, sweat-proof with cold.
Size:6.5*20cm/2.56*7.87inch(D*H);
The cup is easy to be disassembled, and the caliber is wide enough for the cup brush to go through.