Description: Premium and Reliable: Water cups are made of high quality stainless steel material, which is rustproof, sturdy, high temperature resistant, and durable; can be used with confidence. Stackable Design: The camping mug, is enough for home use, stacked to save space. Lightweight and Convenient: This stainless steel cup is light and portable, and does not add extra weight during the trip, which makes your travel relaxing and enjoyable. Nonslip and Heat Insulated: Stainless steel tumblers will come with a sleeve, which can protect hands, and make it easy to hold, very suitable for traveling outdoor activities. Wide Application: This portable cup is suitable for camping, picnics, and hiking. It is widely used as a beer glass, coffee cup, milk cups, tea cup, glass, cold drink cup, and beverage cup. Specification: Material: Stainless Steel 350ml: 8.3cmx9.8cm/3.27inchx3.86inch 500ml: 8.3cmx12.4cm/3.27inchx4.88inch Package Includes: 1 Stainless Steel Cups with Sleeve