Metal brings to you stainless steel tumblers with silicon aperture through which you can drink the liquid directly with the help of a straw without opening the tumbler lid. These are a replacement for plastic glass tumbler - stainless steel tumbler set of 2 with steel lid fixed with a silicon gasket. Stainless steel is lauded for its durability and is also one of the safest materials used in the kitchen. The wide mouth design allows you to clean them efficiently to maintain hygiene. Airtight, leak-proof, freezer safe. Long-lasting and durable. This tumbler set of 2 is therefore safe, sturdy and efficient at storing your beverages for longer periods of time. Handy & easy to carry. These tumblers are perfect for carrying liquids like mineral water, juice, coconut water, tea, coffee and cold drinks while travelling. They are perfect for use as butter milk bottles, juice bottles for office. As these tumblers are airtight, they do not allow the liquid contents to seep out and ruin other items in your bag. Easy to carry for backpacking, hiking, traveling, etc. It come with 2 stainless steel straws, 1 straw-brush to make cleaning even easier presented in a simple Gift Box.