Both the interior and exterior walls are made of food grade stainless steel. The double wall vacuum insulated stainless steel container is insulated for up to 12 hours, and the cold insulation lasts for about 12 hours. One handed operation: This isolation cup features an innovative lid that can be operated with one hand by briefly releasing and pressing the side button. It is an ideal choice for going out and working. Unlimited possibilities: Stainless steel bottles are perfect for use at home, work, sports, cars, beaches, and even camping or hiking. Very suitable for drinking water, tea, coffee, carbonated drinks, wine, and beer.The quantity of over 1000 pieces is based on sea freight
